'Foolishness' in the Bible
David was told, Ahithophel [your counselor] is among the conspirators with Absalom. David said, O Lord, I pray You, turn Ahithophel's counsel into foolishness.
My wounds are loathsome and corrupt because of my foolishness.
The crown of the wise is their wealth of Wisdom, but the foolishness of [self-confident] fools is [nothing but] folly.
The foolishness of man subverts his way [ruins his affairs]; then his heart is resentful and frets against the Lord.
Foolishness is bound up in the heart of a child, but the rod of discipline will drive it far from him.
The plans of the foolish and the thought of foolishness are sin, and the scoffer is an abomination to men.
Even though like grain you should pound a fool in a mortar with a pestle, yet will not his foolishness depart from him.
I turned about [penitent] and my heart was set to know and to search out and to seek [true] wisdom and the reason of things, and to know that wickedness is folly and that foolishness is madness [and what had led me into such wickedness and madness].
The beginning of the words of his mouth is foolishness, and the end of his talk is wicked madness.
[I am the Lord] Who frustrates the signs and confounds the omens [upon which the false prophets' forecasts of the future are based] of the [boasting] liars and makes fools of diviners, Who turns the wise backward and makes their knowledge foolishness,
Coveting (a greedy desire to have more wealth), dangerous and destructive wickedness, deceit; unrestrained (indecent) conduct; an evil eye (envy), slander (evil speaking, malicious misrepresentation, abusiveness), pride ( the sin of an uplifted heart against God and man), foolishness (folly, lack of sense, recklessness, thoughtlessness).
For when the world with all its earthly wisdom failed to perceive and recognize and know God by means of its own philosophy, God in His wisdom was pleased through the foolishness of preaching [salvation, procured by Christ and to be had through Him], to save those who believed (who clung to and trusted in and relied on Him).
For this world's wisdom is foolishness (absurdity and stupidity) with God, for it is written, He lays hold of the wise in their [own] craftiness;