Psalm 14 (repeated in Psalm 53) describes the person who lives as if there is no God as being foolish, a Hebrew word synonymous with wickedness. The description is detailed and repeated in Romans 3, explaining not just the behavior but the spiritual deadness of man at birth. The only hope he has is to come to Zion, the place where Christ is prefigured and promised. Christ alone is the means of salvation. God is our means of wisdom.