The Bible teaches us that the existence of God can be proven in three ways.
First of all through creation. We read in Romans 1:20, “For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse.”
Secondly, God can be proven through our conscience. Romans 2:14-15, “For when the Gentiles, which have not the law, do by nature the things contained in the law, these, having not the law, are a law unto themselves: Which shew the work of the law written in their hearts, their conscience also bearing witness, and their thoughts the mean while accusing or else excusing one another.”
Thirdly, God can be proven through revelation. Hebrews 10:7, “Then said I, Lo, I come (in the volume of the book it is written of me) to do thy will, O God.”
But I have found that God does an excellent job of proving Himself when someone is willing to search for Him with all their heart.
I remember when I was in college,
we had a pastor from
✞Search for God with all your heart, if you are unsaved and unsure He exists.