'Fools' in the Bible

Guard your steps when you go to the house of God; draw near to listen [rather] than to offer a sacrifice of fools, for they do not know that they are doing evil.

When you make a vow to God, do not delay in fulfilling it, for {he takes no pleasure} in fools. Fulfill what you vow!

So do the wise [really] have an advantage over fools? {Can the poor [really] gain anything by knowing how to act in front of others}?

The heart of the wise [is] in the house of mourning, but the heart of fools [is] in the house of mirth.

Better to listen to [the] rebuke of [the] wise than for a man to listen to [the] song of fools.

Like the sound of thorns under a pot, so also the laughter of fools. This also [is] vanity!

Do not be quick in your spirit to anger, for anger lodges in the bosom of fools.

The words of the wise are heard in peace [more] than the shouting of a ruler [is heard] among the fools.