“For the message of the cross is foolishness to those who are perishing, but to us who are saved it is the power of God. For it is written: ‘I will destroy the wisdom of the wise, and bring to nothing the understanding of the prudent.’

“Where is the wise? Where is the scribe? Where is the disputer of this age? Has not God made foolish the wisdom of this world?

“For since, in the wisdom of God, the world through wisdom did not know God, it pleased God through the foolishness of the message preached to save those who believe. For Jews request a sign, and Greeks seek after wisdom; but we preach Christ crucified, to the Jews a stumbling block and to the Greeks foolishness, but to those who are called, both Jews. Because the foolishness of God is wiser than men, and the weakness of God is stronger than men.” 1 Corinthians 1:18-25

“The fool has said in his heart, ‘There is no God.’ Psalm 53:1

“Fools mock at sin, but among the upright there is favor.” Proverbs 14:9

“A fool has no delight in understanding, but in expressing his own heart.” Proverbs 18:2

“For since the creation of the world His invisible attributes are clearly seen, being understood by the things that are made, even His eternal power and Godhead, so that they are without excuse, because, although they knew God, they did not glorify Him as God, nor were thankful, but became futile in their thoughts, and their foolish hearts were darkened. Professing to be wise, they became fools…” Romans 1:20-22

“The heart of the wise is in the house of mourning, But the heart of fools is in the house of mirth.
It is better to hear the rebuke of the wise than for a man to hear the song of fools. For like the crackling of thorns under a pot, so is the laughter of the fool. This also is vanity.” Ecclesiastes 7:4-6

“He who walks with wise men will be wise, but the companion of fools will be destroyed.” Proverbs 13:20

“The way of a fool is right in his own eyes, but he who heeds counsel is wise.” Proverbs 12:15