'Fool' in the Bible

{To the chief Musician, A Psalm of David.} The fool hath said in his heart, There is no God. They are corrupt, they have done abominable works, there is none that doeth good.

From all my transgressions deliver me, A reproach of the fool make me not.

For he seeth that wise men die, likewise the fool and the brutish person perish, and leave their wealth to others.

{To the chief Musician upon Mahalath, Maschil, A Psalm of David.} The fool hath said in his heart, There is no God. Corrupt are they, and have done abominable iniquity: there is none that doeth good.

I was stupid and didn’t understand;I was an unthinking animal toward You.

Arise, O God, plead Thy plea, Remember Thy reproach from a fool all the day.

A brutish man knoweth not; neither doth a fool understand this.