Survey of professional philosophers of religion show that nearly 70% of PhDs in the field are theists!

http://philpapers.org/surveys/­results.pl?affil=Philosophy+fa­culty+or+PhD&areas0=22&areas_m­ax=1&grain=coarse
[Copy and paste into URL otherwise you have to go searching for this stat.]
These are the philosophers most qualified in the arguments for and against the existence of God.

For a list of contemporary theistic philosophers go to:

http://rationalperspective....

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The website link is not my website but to a very interesting interview with the very accomplished Christian philosopher Lydia McGrew.
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COSMOLOGICAL ARGUMENTS:

1. A contingent being (a being that if it exists can not-exist) exists.
2. This contingent being has a cause of or explanation for its existence.
3. The cause of or explanation for its existence is something other than the contingent being itself.
4. What causes or explains the existence of this contingent being must either be solely other contingent beings or include a non-contingent (necessary) being.
5. Contingent beings alone cannot provide an adequate causal account or explanation for the existence of a contingent being.
6.Therefore, what causes or explains the existence of this contingent being must include a non-contingent (necessary) being.
7. Therefore, a necessary being (a being that if it exists cannot not-exist) exists.

Miethe's Cosmological Argument:

1. Some limited, changing beings exist.
2. The present existence of every limited, changing is caused by another.
3. There cannot be an infinite regress of causes of being, because an infinite regress of finite beings would not cause the existence of anything.
4. Therefore, there is a First Cause of the present existence of these beings.
5. The First Cause must be infinite, necessary, eternal, and one.
6. The first uncaused Cause is identical with the God of the Judeo-Christian tradition.
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1. Whatever begins to exist has a cause of its existence.
2. The universe began to exist.
3. Therefore, the universe has a cause of its existence.
1. Every physical event must have a cause.
2. There was a first physical event.
3. There was a first physical event with a cause.
Can you think of a better non-physical cause for the first physical event than God?

TELEOLOGICAL ARGUMENTS:

1] Given the fine-tuning evidence, the existence of a life-permitting universe is very unlikely under a naturalistic single-universe hypothesis.
2] Given the fine-tuning evidence, a life-permitting universe is not unlikely under a theistic hypothesis.
3] The theistic hypothesis was advocated prior to the fine-tuning evidence [therefore it cannot be ad hoc].
4] Therefore, by the Likelihood Principle, a life-permitting universe strongly supports theism over any naturalistic single-universe hypothesis.

An argument from a standard theory of Confirmation, supported by the odds form of Bayes's Theorum by
Robin Collins

1] The fine-tuning of the initial state of the Universe is due to either physical necessity, chance or design.
2] It is not due to physical necessity or chance.
3] Therefore, it is due to design.
(Of course premise 2 requires some justification and you can find such in 'God and Design: The Teleological Argument and Modern Science' ed. Neil Manson 2003 Chapter 8 'Design and the Anthropic Fine-Tuning of the Universe'

MORAL ARGUMENTS:

1. If God does not exist, objective moral values do not exist.
2. Objective moral values do exist.
3. Therefore, God exists.

"The man who says that it is morally acceptable to rape little children is just as mistaken as the man who says, 2+2=5."
Atheist philosopher Michael Ruse

"Now if God does not exist, then what is the foundation for moral values? More particularly, what is the basis for the value of human beings? If God does not exist, then it is difficult to see any reason to think that human beings are special or that there morality is objectively valid."
William Lane Craig

For evidence of the historical person of Jesus go to:

http://www.thedevineevidenc...

ON ANTHONY FLEW:
I have debated some people who think Flew only changed his mind because of one dubious scientific issue. It is worth noting that in his book he starts with his journey away from Humean epistemology and scepticism about experience and causality. He then talks about how several theistic philosophers answered his a priori arguments against the existence of God and convinced him otherwise. He then saw that theism does not necessarily imply determinism [as he had previously thought] and that it could be held alongside libertarian free-will. He then points out he was challenged by Miethe's Cosmological Argument from the principle of existential causality. It is at this point that Flew declared himself no longer an atheist. It was on

"You can never get a cup of tea large enough or a book long enough to suit me." C.S. Lewis

The God I am defending the existence of is the God described in European philosophical literature. Here is Swinburne's nice summary:

"I take the proposition 'God exists' to be logically equivalent to 'there exists necessarily a person without a body who necessarily is eternal, perfectly free, omnipotent, omniscient, perfectly good, and the creator of all things'. I understand by God's being eternal that he always has existed and always will exist. By God's being perfectly free I understand that no object or event or state in any way causally influences him to do the actions that he does - his own choice at the moments of action alone determines what he does. By God's being omnipotent I understand that he is able to do whatever it is logically possible that he can do. By God's being omniscient I understand that he knows whatever it is logically possible that he know. By God's being perfectly good I understand that he always does a morally best action, and does no morally bad action. By his being the creator of all things I understand that everything that exists at each moment of time, he makes it exist, or permits it to exist."
'The Existence of God' p.7

The reasons why I believe in this God are the following arguments [some of these are titles for several types of arguments]:

Cosmological
Kalam
Contingency
Non-analogical Teleological
Fine-Tuning
Physical Constants
Aquinas' Five Ways
Descartes' Ontological
Trademark Argument
Moral Argument
Evil
Rationality
Purpose
Intentionality
Consciousness
The Cumulative case for the resurrection of Jesus [especially as laid out by Timothy and Lydia McGrew]