Psalm 53:1
The fool says in his heart, "There is no God."
They are corrupt, doing abominable iniquity;
there is none who does good.
There is no person in the world who truly believes there is no God - only those who say it. In order to convince themselves of God's nonexistence, fools much preach to themselves because God has permanently branded on every heart His existence. His truth is undeniable in every conscience (Ecc. 3:11). So man suppresses it (Rom. 1:18).
This suppression of truth leads to evil deeds. Man does not want to be judged, so he claims there is no Judge and does the evil his flesh desires. A sinful worldview leads to sinful actions. Ultimately all men are born prone to this. All sin is the denial of God's holiness, justice, mercy, and existence. And all have sinned.
Because man declares a corrupt message to his heart, the heart becomes evil, and deeds follow. The only remedy to this corrupt preaching of lies can be righteous preaching of the truth. And that truth is the Good News.
