Proverbs 15:21 Folly isjoyto him who is destitute of discernment, But a man of understanding walks uprightly.
Ecclesiastes 2:1-3 I said in my heart, “Come now, I will test you with mirth; therefore enjoy pleasure”; but surely, this also was vanity. I said of laughter—“Madness!”; and of mirth, “What does it accomplish?” I searched in my heart how to gratify my flesh with wine, while guiding my heart with wisdom, and how to lay hold on folly, till I might see what was good for the sons of men to do under heaven all the days of their lives.
Ecclesiastes 2:12-13 Then I turned myself to consider wisdom and madness and folly; For what can the man do who succeeds the king?— Only what he has already done. Then I saw that wisdom excels folly As light excels darkness.
Ecclesiastes 7:25 I applied my heart to know, To search and seek out wisdom and the reason of things, To know the wickedness of folly, Even of foolishness and madness.