Massive evidence and arguments for God exist.
First of all, if an omnipotent, omniscient, omnipresent, omni benevolent god really existed, it should have been so obvious that he wouldn't need any evidence. The fact that you need evidence is evidence that he does not exists.
Evidence is something that you should need to convict petty thiefs and mortal cases, not god.
When you need evidence to prove that god exists, you know that your god is man made.
Here is an outline of some evidences for God argued in world class debates. Nobody has defeated any one of them.
I blew hole in this whole retort even before we start looking at the evidence.
Contingency – God is the best explanation for why something exists contingently rather than nothing. Something cannot begin from nothing without a cause. Therefore, Something necessarily self-exists. Self-existence is logically necessary. A Universe from Self –creation is logically impossible. Our Universe began to exist. Our Universe is not self-existent. Our Universe requires a causally antecedent agency to explain it's existence. God does not – God has no beginning, but self-exists as prime.
To the contrary.
An omnipotent, omniscient, omnipresent, omni benevolent ought to be so self sufficient to the extent of not needing to create anything.
Think about it, why should such a being create anything?
Moreover, the perfect state is nothingness.Once you deviate from nothingness, you deviate from perfection. Therefore, the fact that there is something instead of nothing points to imperfection. Why would a perfect god toy with imperfection?
Cosmological – Absolute beginning confirmed by Big Bang cosmology requires a causal agency. Cause of Physical Universe cannot itself be Physical. Must be non-physical, space-less, timeless and willful to cause Physical Universe from Physical Nothingness.
Why should I accept Big Bang cosmology when it cannot resolve the mathematics of a singularity?
Why should I validate one singularity (the existence of god) with another singularity (the singularity at the center of the Big Bang) ?
I might as well just accept god exist and skip the Big Bang justification.
The Big Bang theory is incomplete, do you want to reduce your god to be the validation of an incomplete theory?
Design: Specified, ordered and integrated interdependencies aimed towards a third-purpose design objectives clearly infer intelligent agency. ‘Chance' events within limited time-frames cannot rationally account for Design achievements. No sufficient Naturalistic mechanisms or explanations. Intelligent purpose is far more plausible explanation. Origin of radically sophisticated DNA information (software) driving molecular highly sophisticated molecular machines within each cell. Also, the design inference from irreducible complexity cannot and certainly has not been adequately explained.
If complexity must be designed, then the designer must be more complex than the designed and in turn must be desgidned, ad infinitum, ad absurdum.
If everything complex must be designed, and the world must be designed because it is complex, then god who designed it must also be designed because he is more complex than the world, and who designed him must be designed, ad infinitum ad absurdum.
You have inadvertently reduced your god to a very small cog in a machine of infinite gods above him.
Now, what kind of god is that?
Precision FINELY TUNED constants and quantities present in initial conditions of the Universe to within infinitesimally narrow ranges to permit life. Universe is precision balanced on razor's edge. This is virtual mathematical proof of intent – a function of mind – is necessary to explain these precision orderings.
Anotyher version of the design argument, begs the same question as above.
Moreover, this argument would give rise to a divine conspiracy everytime a highly improbable but not impossible lottery winning takes place. Learned people would recognize the antromorpic principle in it, and sheer probability coupled with the law of averages. When dealing with astronomical numbers in cosmological times, a man can pass through a brick wall unscathed.
The odds are ridiculously low.
But that does not mean it is impossible.
That is no reason to invoke a deity, physics alone can explain that.
Ontological argument – God is a metaphysically necessary Being. Since God's attributes are metaphysically possible, and all metaphysical possibilities must also be actual if possible, God must be actual.
Most ridiculous of them all.
The negative of that could also be said to be true, leading to a crazy contradiction of god existing and not existing at the same time.
Exactly why is god a metaphisically necessary being? You can't just plug this in as a fiat. Can you explain?
Intelligence in Nature: Intelligence, order and reason and information all from Nothingness?
Does the non-intelligence of nature also imply the non-existence of god?
When a tsunami is coming to kill hundred of thousands but humans have no early warning system, does that imply the non-existence of god?
Spiritual instinct of man: Evolved to connect with something not actual?
What if man's instinct are borne out of a primar ignorance? Many societies had some base spiritual instincs to do human sacrifices for their kings (Aztecs, West Africa etc) does this come from god too? Does that prove the existence of god?
Free-will: Chemical causation is not free-will. Agency requires a soul.
Where is free will? I did not choose to be born, I did not choose my parents, I did not chose where to be born, I have no control over my biology, my genes, I can't even control my stomach. I am condemned to live in a universe in which time only moves forward.
How could you say I have free will?
Chemicals have no moral duties.
What is chemicals? What is moral duties? Who said that? Why is this relevant in this conversation?
Moral Truth / Apprehension of Objective moral truth. Is rape really wrong or just an illusion? Is rape just a natural chemical byproduct caused by electrochemical activity (non theism) – or an act of will.
Massive Historical evidences of witnessed Miracles, visions, fulfilled prophecies,.
What historical evidence proves the existence of god? What miracles? What prophecies?
Personal experiences: Ubiquitous NDE's, supernatural phenomena
How come some don't have this personal experience? How do you know it is not simple hallucinations, mirages and other psychological effects? What is supernatural phenomena? Why should what you think as supernatural be perfectly natural but just not yet understood?
Christ's resurrection witnessed by hundreds.
Why hundreds? Why not everybody? Surely if he was god he could have devised a miracle for everybody to witness the resurrection, why did he not? Was this some fake story that came to us through the ages? Is that why?
Absolute failure of Naturalism to explain a Finely tuned Universe, Finite Universe, Sentience, Rational truth and natural order, Moral Law (morality), intuition, intention, intelligence, purpose, free-will…
How does the failure of naturalism prove the existence of god?
Can't naturalism possibly fail to explain a finely tuned universe in a universe that does not have god?
Why should it be this or that while there is a whole lot we don't know?