Some people argue that if God’s existence were more evident, then they would believe. If they could just see God perform a miracle, then they would believe! Really? Because the Israelites didn’t! They watched God perform miracle after miracle in freeing them from the bondage of slavery in Egypt, and what did they do? They rebelled at the first opportunity.
So even if God made his existence undeniable, it doesn’t necessarily mean people would want to have a relationship with him! The Israelites didn’t! Satan didn’t! Many of the Angels didn’t! And rather than believing Jesus when he performed miracle after miracle, did everyone believe in him? No! Not only did they not want a relationship with him, they wanted to kill him!
So the simple knowledge that God exists is not going to make everyone suddenly fall on their knees and worship God! Some people have been running from God their entire lives!