Hopefully making theology simpler to understand! (2 Corinthians 1:12)

For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse.
Romans 1:20, ESV

Evidence for God’s existence are everywhere. Some may try to claim they never knew, but God has said otherwise.

The ultimate proof, though, is the resurrection of Jesus.