The greatest foolishness is unbelief (Pro 1:7, Pro 9:10, Ecc 2:13-14). "fear of the Lord" refers to belief and trust in the Lord. Practical atheism is living like an unbeliever (1Jo 1:6, Eph 4:17) -- not so much denying God exists. Parallel Psalm is 53 (Psa 53:1-6). "A fool says in his heart there is no God." is an attitude that denies God's involvement in the affairs of men. The sin nature deceives us (Jer 17:9). Attitude motivates action; despicable action results from decisions made over time (Psa 14:1). We know what is right but act as practical atheists (Jam 1:8). The piercing gaze of God (Psa 14:2-3). Omniscience watches what we say and do (Jer 17:10, Pro 15:3). Unregenerate man is indited (Rom 3:9-18, Isa 53:6). The first thing God first looks at is our understanding, our "seeking" (Psa 14:2, Isa 55:6, Psa 27:8). "You shall seek me and find Me when you search for Me with all your heart" (Jer 29:13). Solution is that God is the Protector of the humble (Psa 14:4-6). Wrath refers to God's judgment to man according to his deeds in life. God talks to the wicked who mock Him and His righteous children (Psa 14:5-6, Heb 6:18-19). David was looking for the appearance of the Messiah (Psa 14:7) and predicts their captivity centuries later. The 1948 establishment of Israel is in view (Isa 11:11). Cities of refuge (Psa 14:6)are pictures of Christ: (1) Cadesh mean holiness, (2) Shechem - power or shoulder; (3) Hebron - united; (4) Bezer - fortress (Psa 18:2); (5) Ramoth - height (Phi 2:9); (6) Golan (Heb 12:12-13). He is the refuge - we shouldn't step outside (Num 35:25-28).