Why does every human being have a deep-down knowledge that God exists?
God placed that knowledge within mankind when He created them, so it remains deep in every human heart, even in the Adamic nature. Though people may suppress or deny it, Scripture indicates no true atheist exists; there is an inner vacuum and awareness of the Creator that only God can fill.
Les explains that because of all the revelations God gave mankind, beginning with Adam’s creation, that knowledge of God is very deep in every human heart, even in the Adamic nature. He says people who claim atheism are presenting only a veneer; deep down they know, and there is a nagging desire to fill a God-placed vacuum. History and archeology show no tribe without some worship, always associated with blood sacrifice. Noah’s sons came off the ark knowing God, but later generations held down and suppressed the truth.
For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who hold the truth in unrighteousness;