'Fool's' in the Bible

The king composed this mourning song for Abner: "Should Abner's death be like a fool's?

"Now, I've become the object of their mocking melodies; I'm nothing but a fool's proverb to them!

The wisdom of the prudent helps him know how to live, but a fool's stupidity deceives him.

A fool's words bring strife, and his mouth invites fighting.

A fool's mouth is his unraveling, and his lips entrap himself.

Rocks are heavy, and sand is weighty, but a fool's provocation outweighs them both.

Watch your step whenever you visit God's house, and come more ready to listen than to offer a fool's sacrifice, since fools never think they're doing evil.

A wise man's heart tends toward his right, but a fool's heart tends toward his left.