My proof God exists
His perfect, inerrant, preserved word in the KJB

Jesus' Existence and resurrection.

The laws, order and design of nature, humans and the animal kingdom.

God consciousness, God puts in every person.  Rom 1

Accurate history of the gospel accounts and eyewitness testimony recorded.

Statistics and probability

Prophecy

The nation of Israel

The fact that there is no other reasonable explanation of things coming into being.
(the chance + time myth is nowhere close to reasonable)

Last and not least - faith.  My faith doesn't prove that God exists, He exists whether I believe in Him or not.  But my faith is what I have to be able to believe in Him, myself.

Rom 10:17 KJV

So then faith cometh by hearing, and hearing by the word of God.

Heb 11:1 KJV

Now faith is the substance of things hoped for, the evidence of things not seen.

Heb 11:6 KJV

But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.