The evidence for the existence of God. It can't be proved scientifically. Neither can the existence of Napolean be proved. Science can only prove repeatable things. But this does not mean these things aren't true.
Science only measures things.
You can't measure 3 feet of love, but it exists. They are safe until the Judgment Day. Then things will get interesting. Although not proof, we do have evidence for God's existence. Among most remote tribes, there is a universal belief in God.