Psalms 14:1

1. Fool The word never means idiot, or one deficient in natural ability, but always one who has cast off the fear of God, and acts from pride, selfish passions, and self-conceit.

Said in his heart “Heart,” here, as often in the Scriptures, denotes the centre of the sympathetic system, the seat of the desires and affections, as distinct from the cerebral or intellective faculty. This atheism, hence, was not founded in reason, but in impure and selfish desires.

Corrupt… abominable This gives the moral cause and fruit of atheism, and defines nabal, or fool.