An amazing fact is that nowhere in the Bible does God seek to prove to us that He exists.
In the 1st chapter of Romans, the Holy Spirit tells us why:
Romans 1:19-20 …because what may be known of God is manifest in them, for God has shown it to them. For since the creation of the world His invisible attributes are clearly seen, being understood by the things that are made, even His eternal power and Godhead, so that they are without excuse.
First; God created each human being with an inner awareness that He exists (“what may be known of God is manifest in them” Romans 1:19). The evidence of this is universally seen all over the earth. Human beings have a desire to worship. They will worship many and various gods, objects, passions, and pleasures, even self. There is no other explanation for why all people have a desire to direct their affections so fervently towards something, except that God created us with a desire to worship. God made us for Himself, and it is through our worship of Him that we find our joy and satisfaction. Not until we truly begin to worship the one true God, will we find inner peace and contentment. People spend their entire life trying to fill up the emptiness they feel inside with everything they can. Only when a person comes into a personal relationship with God, through His Son Jesus Christ, is that emptiness fully and completely filled.