Tag Archives: Evidence

William Lane Craig debates Austin Dacey: Does God Exist?

Two tough rams butt heads, and may the best ram win!
Two tough rams butt heads, and may the best ram win!

Here is the video and summary of a debate between Christian theist William Lane Craig and Austin Dacey at Purdue University in 2004 about the existence of God.

The debaters:

The video: (2 hours)

The video shows the speakers and powerpoint slides of their arguments. Austin Dacey is one of the top atheist debaters, and I would put him second to Peter Millican alone, with Walter Sinnott-Armstrong in third place. This is the debate to show people who are new to apologetics. The debate with Peter Millican is better for advanced students, and that’s no surprise since he teaches at Oxford University and is familiar with all of Dr. Craig’s work. The Craig-Dacey debate is the one that I give to my co-workers.

By the way, you can get the DVDs and CDs for the first Craig-Dacey debate and the second Craig-Dacey debate and the second Craig-Sinnott-Armstrong debate. The Peter Millican debate is not available on DVD, but the link above (Peter Millican) has the video and my summary.

Dr. Dacey’s 5 arguments below are all good arguments that you find in the academic literature. He is also an effective and engaging speaker, This is a great debate to watch!

SUMMARY of the opening speeches:

Dr. Craig’s opening statement:

Dr. Craig will present six reasons why God exists:

  1. (Contingency argument) God is the best explanation of why something exists rather than nothing
  2. (Cosmological argument)  God’s existence is implied by the origin of the universe
  3. (Fine-tuning argument) The fine-tuning of the universe for intelligent life points to a designer of the cosmos
  4. (Moral argument) God is the best explanation for the existence of objective moral values and objective moral duties
  5. (Miracles argument) The historical facts surrounding the life, death and resurrection of Jesus
  6. (Religious experience) God’s existence is directly knowable even apart from arguments

Dr. Dacey’s opening argument:

There are two ways to disprove God’s existence, by showing that the concept of God is self-contradictory, or by showing that certain facts about ourselves and the world are incompatible with what we would expect to be true if God did exist. Dr. Dacey will focus on the second kind of argument.

  1. The hiddenness of God
  2. The success of science in explaining nature without needing a supernatural agency
  3. The dependence of mind on physical processes in the brain
  4. Naturalistic evolution
  5. The existence of gratuitous / pointless evil and suffering

One final point:

One thing that I have to point out is that Dr. Dacey quotes Brian Greene during the debate to counter Dr. Craig’s cosmological argument. Dr. Craig could not respond because he can’t see the context of the quote. However, Dr. Craig had a rematch with Dr. Dacey where was able to read the context of the quote and defuse Dr. Dacey’s objection. This is what he wrote in his August 2005 newsletter after the re-match:

The following week, I was off an another three-day trip, this time to California State University at Fresno. As part of a week of campus outreach the Veritas Forum scheduled a debate on the existence of God between me and Austin Dacey, whom I had debated last spring at Purdue University. In preparation for the rematch I adopted two strategies: (1) Since Dacey had come to the Purdue debate with prepared speeches, I decided to throw him for a loop by offering a different set of arguments for God, so that his canned objections wouldn’t apply. I chose to focus on the cosmological argument, giving four separate arguments for the beginning of the universe, and on the evidence for Jesus’ resurrection. (2) I reviewed our previous debate carefully, preparing critiques of his five atheistic arguments. In the process I found that he had seriously misunderstood or misrepresented a statement by a scientist on the Big Bang; so I brought along the book itself in case Dacey quoted this source again. I figured he might change his arguments just as I was doing; but I wanted to be ready in case he used his old arguments again.

[…]The auditorium was packed that night for the debate, and I later learned that there were overflow rooms, too. To my surprise Dr. Dacey gave the very same case he had presented at Purdue; so he really got clobbered on those arguments. Because he wasn’t prepared for my new arguments, he didn’t even respond to two of my arguments for the beginning of the universe, though he did a credible job responding to the others. I was pleased when he attacked the Big Bang by quoting the same scientist as before, because I then held up the book, specified the page number, and proceeded to quote the context to show what the scientist really meant.

Dr. Craig is always prepared!

Are Mormon doctrines supported by philosophy, science and history?

A conflict of worldviews
A conflict of worldviews

This post presents evidence against Mormonism/LDS in three main areas. The first is in the area of science. The second is in the area of philosophy. And the third is in the area of history.

The scientific evidence

First, let’s take a look at what the founder of Mormonism, Joseph Smith, believes about the origin of the universe:

“The elements are eternal. That which had a beggining will surely have an end; take a ring, it is without beggining or end – cut it for a beggining place and at the same time you have an ending place.” (“Scriptural Teachings of the Prophet Joseph Smith”, p. 205)

“Now, the word create came from the word baurau which does not mean to create out of nothing; it means to organize; the same as a man would organize materials and build a ship. Hence, we infer that God had materials to organize the world out of chaos – chaotic matter, which is element, and in which dwells all the glory. Element had an existance from the time he had. The pure principles of element are principles which can never be destroyed; they may be organized and re-organized, but not destroyed. They had no beggining, and can have no end.”
(“Scriptural Teachings of the Prophet Joseph Smith”, p. 395)

A Mormon scholar named Blake Ostler summarizes the Mormon view in a Mormon theological journal:

“In contrast to the self-sufficient and solitary absolute who creates ex nihilo (out of nothing), the Mormon God did not bring into being the ultimate constituents of the cosmos — neither its fundamental matter nor the space/time matrix which defines it. Hence, unlike the Necessary Being of classical theology who alone could not not exist and on which all else is contingent for existence, the personal God of Mormonism confronts uncreated realities which exist of metaphysical necessity. Such realities include inherently self-directing selves (intelligences), primordial elements (mass/energy), the natural laws which structure reality, and moral principles grounded in the intrinsic value of selves and the requirements for growth and happiness.” (Blake Ostler, “The Mormon Concept of God,” Dialogue: A Journal of Mormon Thought 17 (Summer 1984):65-93)

So, Mormons believe in an eternally existing universe, such that matter was never created out of nothing, and will never be destroyed. But this is at odds with modern cosmology.

The Big Bang cosmology is the most widely accepted cosmology of the day. It denies the past eternality of the universe. This peer-reviewed paper in an astrophysics journal explains. (full text here)

Excerpt:

The standard Big Bang model thus describes a universe which is not eternal in the past, but which came into being a finite time ago. Moreover,–and this deserves underscoring–the origin it posits is an absolute origin ex nihilo. For not only all matter and energy, but space and time themselves come into being at the initial cosmological singularity. As Barrow and Tipler emphasize, “At this singularity, space and time came into existence; literally nothing existed before the singularity, so, if the Universe originated at such a singularity, we would truly have a creation ex nihilo.

[…]On such a model the universe originates ex nihilo in the sense that at the initial singularity it is true that There is no earlier space-time point or it is false that Something existed prior to the singularity.

Christian cosmology requires such a creation out of nothing, but this is clearly incompatible with what Mormons believe about the universe. The claims about the universe made by the two religions are in disagreement, and we can test empirically to see who is right, using science.

Philosophical problems

Always Have a Reason contrasts two concepts of God in Mormonism: Monarchotheism and Polytheism. It turns out that although Mormonism is actually a polytheistic religion, like Hinduism. In Mormonism, humans can become God and then be God of their own planet. So there are many Gods in Mormonism, not just one.

Excerpt:

[T]he notion that there are innumerable contingent “primal intelligences” is central to this Mormon concept of god (P+M, 201; Beckwith and Parrish, 101). That there is more than one god is attested in the Pearl of Great Price, particularly Abraham 4-5. This Mormon concept has the gods positioned to move “primal intelligences along the path to godhood” (Beckwith and Parrish, 114). Among these gods are other gods which were once humans, including God the Father. Brigham Young wrote, “our Father in Heaven was begotten on a previous heavenly world by His Father, and again, He was begotten by a still more ancient Father, and so on…” (Brigham Young, The Seer, 132, quoted in Beckwith and Parrish, 106).

[…]The logic of the Mormon polytheistic concept of God entails that there is an infinite number of gods. To see this, it must be noted that each god him/herself was helped on the path to godhood by another god. There is, therefore, an infinite regress of gods, each aided on his/her path to godhood by a previous god. There is no termination in this series. Now because this entails an actually infinite collection of gods, the Mormon polytheistic concept of deity must deal with all the paradoxes which come with actually existing infinities…

The idea of counting up to an actual infinite number of things by addition (it doesn’t matter what kind of thing it is) is problematic. See here.

More:

Finally, it seems polytheistic Mormonism has a difficulty at its heart–namely the infinite regress of deity.

[…]Each god relies upon a former god, which itself relies upon a former god, forever. Certainly, this is an incoherence at the core of this concept of deity, for it provides no explanation for the existence of the gods, nor does it explain the existence of the universe.

Now let’s see the historical evidence against Mormonism.

The historical evidence

J. Warner Wallace explains how the “Book of Abraham”, a part of the Mormon Scriptures, faces historical difficulties.

The Book of Abraham papyri are not as old as claimed:

Mormon prophets and teachers have always maintained that the papyri that was purchased by Joseph Smith was the actual papyri that was created and written by Abraham. In fact, early believers were told that the papyri were the writings of Abraham.

[…]There is little doubt that the earliest of leaders and witnesses believed and maintained that these papyri were, in fact the very scrolls upon which Abraham and Joseph wrote. These papyri were considered to be the original scrolls until they were later recovered in 1966. After discovering the original papyri, scientists, linguists, archeologists and investigators (both Mormon and non-Mormon) examined them and came to agree that the papyri are far too young to have been written by Abraham. They are approximately 1500 to 2000 years too late, dating from anywhere between 500 B.C. (John A. Wilson, Dialogue: A Journal of Mormon Thought, Summer 1968, p. 70.) and 60 A.D. If they papyri had never been discovered, this truth would never have come to light. Today, however, we know the truth, and the truth contradicts the statements of the earliest Mormon leaders and witnesses.

The Book of Abraham papyri do not claim what Joseph Smith said:

In addition to this, the existing papyri simply don’t say anything that would place them in the era related to 2000BC in ancient Egypt. The content of the papyri would at least help verify the dating of the document, even if the content had been transcribed or copied from an earlier document. But the papyri simply tell us about an ancient burial ritual and prayers that are consistent with Egyptian culture in 500BC. Nothing in the papyri hints specifically or exclusively to a time in history in which Abraham would have lived.

So there is a clear difference hear between the Bible and Mormonism, when it comes to historical verification.

Further study

If you want a nice long PDF to print out and read at lunch (which is what I did with it) you can grab this PDF by Michael Licona, entitled “Behold, I Stand at the Door and Knock“.

Lawrence Krauss debates “A Universe From Nothing” with an astrophysicist

Two horses fight it out, may the best horse win!
Two horses fight it out, may the best horse win!

Dina sent me news of an exciting episode of Unbelievable, which features Lawrence Krauss, who debated William Lane Craig. Krauss’ book was also reviewed in the New York Times.

Details:

Lawrence Krauss is a Cosmologist at Arizona State University who describes himself as an “anti-theist”. His latest book “A Universe From Nothing” has received both acclaim and criticism for its attempt to answer the question “Why is there something rather than nothing?” Debating the issue with Krauss is Rodney Holder, Course director at the Faraday Institute, Cambridge. An astrophysicist and priest by background. In a lively exchange they debate whether Krauss’ “nothing” is “nothing”, fine tuning and multiverses, scientific knowledge, miracles and the usefulness of theology and philosophy.

This debate is quite entertaining, and do not be intimidated if your don’t understand science. You can understand pretty easily who is arguing based on facts and who is speculating about unobservable, untestable entities. At one point, Krauss actually denies that there is any fine-tuning in the universe, so please see this link to refute that claim as well as this podcast which explains some examples of fine-tuning. Krauss gets a bit angry at the beginning, but calms down.

Quotation marks are for direct quotes, italics is for made-up snark. See below the summary for more posts that are related to this one.

Summary of the discussion: (picked up at 9:30 when they start talking about the book)

Brierley:

  • explain your theory of how the universe can come into being from nothing

Krauss:

  • the nothing that preceded the universe is “no space, no time, no universe”
  • theists say that God is responsible for creating the universe out of this nothing
  • but the laws of nature can create the universe uncaused out of nothing

Holder:

  • Krauss sometimes writes that the nothing is really a quantum vacuum, but that is not nothing
  • He even acknowledges in his book that a quantum vacuum is not nothing
  • He thinks that the nothing has properties, even though it has no being
  • It has the property of being unstable
  • It has the property of being acted on by quantum fields
  • It has the property of being acted on by gravity

Krauss:

  • But nothing can have the potential to do things inside it
  • For example suppose you have an electron, which is not nothing
  • If it jumps from one level to another, it emits light
  • There was no potential for the light in the electron, but it was there as part of atomic structure

Holder:

  • But in cases like that, there is something physical that has the potential
Krauss:
  • Well, how did God makes the universe then if it had no potential?

Holder:

  • God existed, and the potential for creating the universe in himself

Brierley:

Krauss:
  • It was written by a philosopher, so I dismissed it

Brierley:

Krauss:
  • These book reviewers have not even read my book!

Krauss:

  • Science will be able to figure out how to make something from nothing in the future
  • We are even now speculating about interesting questions, like is there a multiverse?

Brierley:

  • Consider the critical review of your book in the New York Times
  • The author of the review claims that you equivocate on the term “nothing”
  • In order to get things to pop into being, you have to make “nothing” mean “something”
  • Reviewer: none of Krauss’ theories explain how something can come from actual nothingness

Krauss:

  • In physics, something and nothing are not that different
  • The reviewer doesn’t understand the physics
  • He doesn’t understand quantum field theory
  • You could call a quantum vacuum “nothing”, (this is the vacuum fluctuation model, refuted by William Lane Craig in a peer-reviewed publication in an astrophysics journal – get the full text of the article here)
  • Maybe there is an eternally existing multiverse that we can’t observe or test scientifically
  • Maybe it has laws that we don’t know about which allow our universe to pop into being
  • Maybe this popping into being is uncaused
  • (alarmed) Who made God? Who made God?

Holder:

  • God is eternal and necessary

Krauss:

  • (interrupting, angry) What does it mean for something to be necessary?

Holder:

  • Basically, you have to decide whether there is more evidence that the necessary being God or a multiverse

Brierley:

  • So Dr. Krauss are you willing to say that the universe is a brute fact, in some sense, and requires no explanation

Krauss:

  • (angry) Religious people are stupid because they just assume brute facts, not like me and my unobservable, untestable multiverse
  • (angry) Religious people are against the progress of science, they don’t want to figure out how things work

Brierley:

  • But isn’t it possible that naturalists can be opposed to the progress of science?
  • What about the way the Fred Hoyle opposed the Big Bang because he wanted an eternal universe

Krauss:

  • (angry) But naturalists like me let the facts determine our beliefs, like the facts about the eternal unobservable, untestable multiverse
  • (angry, shouting) Philosophers are stupid, they know nothing!

=== Break ===

Brierley:

  • Do you see any evidence of purpose in the universe?

Krauss:

  • Well maybe I would believe if the stars lined up to spell out a message from God

Brierley:

  • Actually no, that wouldn’t be evidence for God on your multiverse view
  • if there an infinite number of universes existing for an infinite amount of time, then anything can happen no matter how unlikely it is
  • therefore, no evidence could convince you that God exists, since the unobservable, untestable, eternal multiverse can make anything it wants

Krauss:

  • That’s a true statement, and very convenient for atheists who don’t want to be accountable to God, don’t you think?
Brierley:
  • Back to the multiverse, how does it solve the fine-tuning?

Krauss:

  • “We have no idea if the universe is fine-tuned for life”, even though the atheist Martin Rees who endorsed Krauss’ book wrote his own book about the fine-tuning of the universe called “Just Six Numbers”
  • Inflationary theory does suggest a way to create multiple universes, (this is the chaotic inflationary model, refuted by William Lane Craig in a peer-reviewed publication in an astrophysics journal – get the full text of the article here)

Brierley:

  • But this theory is still very much a hypothesis, isn’t it? We can’t observe or test this hypothesis can we?

Krauss:

  • “No, and that is really important to state”
  • “I’m an empiricist, so if you can’t falsify it and if you can’t test it then it’s not science”
  • In my book, I speculate about a way that we could test the multiverse theory

Holder:

  • Yes, in principle, the multiverse would be scientific if you could test it through other theories like inflationary theory
  • There are a lot of speculations about multiverse theory, but no evidence from predictions that were validated in the lab

Krauss:

  • “I agree completely with everything you just said”

Brierley:

  • Roger Penrose agrees with Holder that the multiverse theory is too speculative
  • (To Holder) Isn’t the multiverse theory better than positing a completely different kind of being, which is God?

Holder:

  • The multiverse theory is extremely speculative
  • Even if the multiverse were true, you would still need to explain the multiverse

Krauss:

  • People don’t oppose my book because it’s full of self-contradictory speculations
  • People oppose my book because they are stupid and ignorant

Holder:

  • There are things that exist that science cannot measure, like objective morality
  • It’s possible to give explanations for moral behavior by appealing to evolution
  • But that does not ground self-sacrificial morality, such as what occurs in the Christian life

Brierley:

  • Dawkins says there is no purpose or morality in in the universe, do you agree?

Krauss:

  • “There is certainly no evidence of any of that”

Brierley:

  • In the book, you talk about how we live in a special time in the universe’s history to be able to do science, (i.e. – The Privileged Planet hypothesis)
  • You also write about how all the discoveries were are making will not be communicated to anyone in other places in the universe
  • So what is the meaning of doing science on your view? And why are you sad at the knowledge that will not be available to people in the future?
  • Are you longing for some kind of purpose?

Krauss:

  • No, I just get enjoyment from studying the universe with science to gain understanding

Holder:

  • What do you make of Einstein’s statement about the unexpected comprehensibility of the universe
  • Theists would say that this is because God wanted us to study and understand and gain knowledge

Krauss:

  • “It is remarkable that the universe is comprehensible”

Brierley:

  • Why is the universe comprehensible?

Krauss:

  • Well, maybe the universe just has to be that way

Brierley:

  • What do you make of the heat death of the universe, when all life in the universe will die out?

Krauss:

  • That’s the way the universe is
=== BREAK ===

Krauss:

  • I wouldn’t want to live in a universe where there was a God
  • God is a cosmic Saddam Hussein
  • “Religious people turn their minds off” and believe in God for consolation

Holder:

  • First, Jesus is the revelation of God and he is no Saddam Hussein
  • Second, the Christian life is anything but easy, we are facing some persecution already in the UK
  • Third, there is also the problem of being accountable to God when we die
  • It’s very much like science – Christianity is the way it is, not the way we want it to be

Krauss:

  • “If you don’t believe in him, you don’t get any of the benefits, so you have to believe”
  • “And then if you’ve done something wrong, you’re going to be judged for it”
  • “So I don’t want to be judged by God, I want to be… that’s the bottom line”

Holder:

  • Well, Jesus has died to pay the price for those things we’ve done wrong
  • Although we will have to face the charges for what we’ve done, believers will ultimately be forgiven

Finally, Peter Sean Bradley note that Krauss is now walking back his rhetoric in response to criticisms from people like atheist John Horgan.

Related posts

Did Jesus appeal to evidence when reaching out to skeptics?

Investigation in progress
Investigation in progress

From Eric Chabot of Ratio Christi – Ohio State University.

He lists eight ways that Jesus makes his case.

Here’s one of the ways:

2. Jesus Appealed to Evidence

Jesus knew He could not show up on the scene and not offer any evidence for His Messiahship. In his book On Jesus, Douglas Groothuis notes that Jesus appealed to evidence to confirm His claims. John the Baptist, who was languishing in prison after challenging Herod, sent messengers to ask Jesus the question: “Are you the one who was to come, or should we expect someone else?” (Matt. 11:3). This may seem an odd question from a man the Gospels present as the prophetic forerunner of Jesus and as the one who had proclaimed Jesus to be the Messiah. Jesus, however, did not rebuke John’s question. He did not say, “You must have faith; suppress your doubts.” Instead, Jesus recounted the distinctive features of His ministry:

“Go back and report to John what you hear and see: The blind receive sight, the lame walk, those who have leprosy are cured, the deaf hear, the dead are raised, and the good news is preached to the poor. Blessed is the man who does not fall away on account of me.” (Matt. 11:4-6; see also Luke 7:22).

Even in the Messiah Apocalypse, which is dated between 100 and 80 B.C.E mentions a similar theme as seen in Matt.11: 4-6: “He [God] frees the captives, makes the blind see, and makes the bent over stand straight…for he will heal the sick, revive the dead, and give good news to the humble and the poor he will satisfy, the abandoned he will lead, and the hungry he will make rich.”

Jesus’ works of healing and teaching are meant to serve as positive evidence of His messianic identity, because they fulfill the messianic predictions of the Hebrew Scriptures. What Jesus claimed is this:

1. If one does certain kinds of actions (the acts cited above), then one is the Messiah.
2. I am doing those kinds of actions.
3. Therefore, I am the Messiah.

And:

5. The Miracles of Jesus

In the Bible, miracles have a distinctive purpose: they are used for three reasons:
1. To glorify the nature of God (John 2:11; 11:40)
2. To accredit certain persons as the spokesmen for God (Acts 2:22; Heb. 2:3–4)
3. To provide evidence for belief in God (John 6:2, 14; 20:30–31). (3)

Nicodemus, a member of the Jewish ruling council, the Sanhedrin, told Jesus, “‘Rabbi, we know you are a teacher who has come from God. For no one could perform the miraculous signs you are doing if God were not with him’ ” (Jn. 3:1–2). In Acts, Peter told the crowd that Jesus had been “accredited by God to you by miracles, wonders and signs, which God did among you through him” (Acts 2:22).

In Matthew 12:38-39, Jesus says, “A wicked and adulterous generation asks for a miraculous sign! But none will be given it except the sign of Jonah the prophet.” In this Scripture, God confirmed the Messianic claim when Jesus said the sign that would confirm his Messiahship was to be the resurrection.

It is important to note that not all witnesses to a miracle believe. Jesus did not do His miracles for entertainment. They were done to evoke a response. So perhaps Paul Moser is right on target in what he calls “kardiatheology” – a theology that is aimed at one’s motivational heart (including one’s will) rather than just at one’s mind or one’s emotions. In other words, God is very interested in moral transformation.

We see Jesus’ frustration when His miracles did not bring the correct response from his audience. “Even after Jesus had done all these miraculous signs in their presence, they still would not believe in him” (John 12:37). Jesus himself said of some, “They will not be convinced even if someone rises from the dead” (Luke 16:31). One result, though not the purpose, of miracles is condemnation of the unbeliever (cf. John 12:31, 37). (4)

I am forever pointing this out to people. Jesus didn’t get people to follow him because he was nice. And he didn’t just talk to people who agreed with him. He even promised “a wicked generation” his resurrection as evidence for his claims. He called his resurrection “the sign of Jonah”, and it was meant for people who were looking for a “sign”. This is the way we should be – using whatever evidence we can dig up from science, history, law, and even the social sciences (when arguing moral issues).

Read the rest here. Surprise! Jesus loves to convince people, and not just by quoting the Bible to people who already accept the Bible, either. His goal was not to make people accept his claims because of their feelings, but because of the evidence he offered them.

What got me started on apologetics? William Lane Craig debate transcripts

William Lane Craig lecturing to university students
William Lane Craig lecturing to university students

Yes, William Lane Craig debate transcripts. In fact, I still read them from time to time to keep up my skills.

Here’s one of my favorites, the Craig-Nielsen debate on grounding morality without God

Summary:

THE CRAIG-NIELSEN DEBATE: GOD, MORALITY, AND EVIL
William Lane Craig and Kai Nielsen
with annotations by William Lane Craig
February 1991, University of Western Ontario

Best part:

Finally, he raises the issue of immortality and says, “Death doesn’t undermine moral values. In fact, things that we value become all the more precious.” Well, in one sense he’s right. It’s the absence of God that undermines the objectivity of moral values, not death. But let’s suppose that there are objective moral values. What would be undermined by the lack of immortality? I think two things.

First, I think there would be no reason to adopt the moral point of view. Since you’re going to die, everyone ends up the same. It doesn’t make any difference whether you live as a Hitler or a Mother Teresa. There is no relationship between your moral living and your ultimate fate. And so in that sense, death undermines the reason for adopting the moral point of view rather that just being an egoist and living for self.

Second, there’s no basis for self-sacrifice on this point of view. Why should an atheist, who knows everything is going to end in death, do things that are morally right that go against self-interest? For example, a few years ago there was a terrible mid-winter air disaster in Washington, DC, as a plane crashed into a bridge spanning the Potomac River, spilling its passengers into the icy waters. And as the helicopters came to rescue these people, attention focused on one man who again and again passed by the rope ladder rather than be pulled to safety himself. Seven times he did this, and when they came again, he was gone. The whole nation turned its eyes to this man in respect and admiration for the noble act of self-sacrifice that he did. And yet on the atheistic view, that man wasn’t noble. He did the stupidest thing possible. He should have gone for the rope ladder first, pushed others away, if necessary, in order to survive! But to give up all the brief existence he will ever have for others he didn’t even know? Why? It seems to me, then, that it’s not simply the absence of God that undermines objective moral values, but ethical living is also undermined by the atheistic point of view because you then have no reason to adopt the moral point of view and you have no basis for acts of self-sacrifice.

By contrast, on the Christian view, where you have both God and immortality, you have the necessary presuppositions for the affirmation of objective moral values and for consistent living of the ethical life.

And another of my favorites, the Craig-Taylor debate on the ontological grounding of morality.

Summary:

Is The Basis Of Morality Natural Or Supernatural?
Richard Taylor and William Lane Craig
October 1993, Union College, Schenectady, New York

Sample Craig:

(2) I argued that moral accountability also exists under the supernaturalist view, and Professor Taylor didn’t deny the point.

(II) What about my critique, then, of naturalism? I said that naturalism doesn’t provide a sound foundation for morality, and here I made two points:

(1) On the naturalist view, objective right and wrong do not exist. Again, Professor Taylor doesn’t deny this point; he just says, “Well, to say that they’re conventional doesn’t mean they’re contemptible.” Well, granted; but it does mean they’re arbitrary, they’re non–objective. There’s no more difference between moral right and wrong than driving on the right–hand side of the road versus the left–hand side of the road. It’s simply a societal convention. And the modern evolutionist thinks these conventions are just based in socio–biological evolution. According to Michael Ruse, a professor of the philosophy of science,

The position of the modern evolutionist…is that humans have an awareness of morality…because such an awareness is of biological worth. Morality is a biological adaptation, no less than are hands and feet and teeth…. Considered as a rationally justifiable set of claims about an objective something, [ethics] is illusory. I appreciate that when somebody says, ‘Love thy neighbor as thyself,’ they think they are referring above and beyond themselves…. Nevertheless…such reference is truly without foundation. Morality is just an aid to survival and reproduction and…any deeper meaning is illusory….{26}

This is essentially the same view as Professor Taylor’s. Moral values are simply rooted in socio–biological evolution, that have passed down as certain taboos and certain commands, but they have no objective validity in terms of their moral rightness or wrongness. Professor Taylor says, “But I have a high regard for people who are truly moral and decent.” I don’t deny that. Of course he does! But the point is that in his ethics, in his philosophy, he has no basis for that affirmation. What I bring is not a new set of values—I think we pretty much hold those in common—but I’m offering a secure foundation for those values that we all want to hold dear.

You see, on Professor Taylor’s view, there really isn’t any objective morality. I think every one of us here tonight would agree that it’s wrong to kill babies and that the holocaust was morally wrong. But in his book Professor Taylor says, “The infanticide practiced by the Greeks of antiquity did not violate their customs. If we say it was nevertheless wrong, we are only saying that it is forbidden by our ethical and legal rules. And the abominations practiced by the Nazis…are forbidden by our rules, and not, obviously, by theirs.”{27} I submit that that is simply a patently false view of moral values and that naturalism, therefore, can’t provide any objective basis for right and wrong.

And another of my favorites, the Craig-Tooley debate on the problem of evil.

Summary:

A Classic Debate on the Existence of God
Dr. William Lane Craig & Dr. Michael Tooley
November 1994, University of Colorado at Boulder

Sample Craig:

(2) Christian doctrines increase the probability of the coexistence of God and the evils in the world. Let me just mention a couple of these.

(i) On the Christian view, the purpose of life is not happiness as such in this life. Rather it is the knowledge of God—which will ultimately produce true and everlasting happiness. What that means is that many evils occur in this life which might be utterly pointless with respect to producing human happiness. But they might not be pointless with respect to producing the knowledge of God. Dr. Tooley assumes when he talks about changes that would make this world a better place, that the purpose of life is basically to be happy in this life. And I certainly admit that you could make changes that might appear to make this life a better place, make it happier. But that’s not God’s purpose. So if you understand that the purpose of life is not happiness as such, I think that you can see that the existence of evil doesn’t necessarily cast any improbability upon God’s existence.

(ii) It’s also the Christian view that God’s purpose spills over into eternal life. In the afterlife God will bestow a glory and happiness upon us that is incomparable to what we’ve suffered here on earth. And the longer we spend in eternity with Him, the more the sufferings in this life shrink by comparison to an infinitesimal instant. Dr. Tooley admits in his article that it is possible that immortality could justify such evils. But, he says, it’s “very unlikely” that there is life after death. Well, I have two comments. First, I’d like him to prove that it’s unlikely that there is life after death.{26} Second, I suggest that the resurrection of Jesus gives us grounds for hoping in life after death, and I’ve attempted to justify that historically. So given these Christian doctrines, I think you can see that the existence of God and evil is not so improbable after all.

[…]

(4) Finally, I think that there is actually an argument for God from evil. It would go like this:

(i) If God does not exist, objective moral values do not exist. If there is no God, moral values are either socio-biological by-products or just expressions of personal preference.

(ii) Evil exists. That’s the premise of the atheist. There is real evil in the world.

(iii) Therefore, objective values do exist. Some things are really wrong.

(iv) Therefore, God exists.

Thus the presence of evil in the world actually demonstrates God’s existence because in the absence of God, there wouldn’t be any distinction objectively between good and evil, between right and wrong. So although evil in one sense calls into question God’s existence, in a much deeper sense, I think, it actually requires God’s existence.

So in the light of these four responses, I think that the argument from evil, as difficult and emotionally pressing as it might be, in the end doesn’t constitute a good argument against the existence of God. So I think the four arguments given against the existence of God by Dr. Tooley are inconclusive. You’ve still got my six arguments for God’s existence, and therefore I still think that on balance the evidence favors theism as the more rational worldview.

There are more debate transcripts on Craig’s Reasonable Faith web site.