Luke 24:25. Then he said unto them, O fools, and slow of heart to believe all that the prophets have spoken:
Romans 1:14. I am debtor both to the Greeks, and to the Barbarians; both to the wise, and to the unwise.
Galatians 3:1. O foolish Galatians, who hath bewitched you, that ye should not obey the truth, before whose eyes Jesus Christ hath been evidently set forth, crucified among you?
Galatians 3:3. Are ye so foolish? having begun in the Spirit, are ye now made perfect by the flesh?
1 Timothy 6:9. But they that will be rich fall into temptation and a snare, and into many foolish and hurtful lusts, which drown men in destruction and perdition.
Titus 3:3. For we ourselves also were sometimes foolish, disobedient, deceived, serving divers lusts and pleasures, living in malice and envy, hateful, and hating one another.
Deuteronomy 32:31. For their rock is not as our Rock, even our enemies themselves being judges.
Psalm 49:13. This their way is their folly: yet their posterity approve their sayings. Selah.
Proverbs 15:21. Folly is joy to him that is destitute of wisdom: but a man of understanding walketh uprightly.
Proverbs 17:28. Even a fool, when he holdeth his peace, is counted wise: and he that shutteth his lips is esteemed a man of understanding.
Sirach 21:19. The talking of a fool is like a burden in the way: but in the lips of the wise, grace shall be found.
Sirach 42:8. Be not ashamed to inform the unwise and foolish, and the aged, that are judged by young men: and thou shalt be well instructed in all things, and well approved in the sight of all men living.