Proverbs 27:22

27:22 If you should pound the fool in the mortar

among the grain with the pestle,

his foolishness would not depart from him.

Jeremiah 5:3

5:3 Lord, I know you look for faithfulness.

But even when you punish these people, they feel no remorse.

Even when you nearly destroy them, they refuse to be corrected.

They have become as hardheaded as a rock.

They refuse to change their ways.

Jeremiah 31:18

31:18 I have indeed heard the people of Israel say mournfully,

‘We were like a calf untrained to the yoke.

You disciplined us and we learned from it.

Let us come back to you and we will do so,

for you are the Lord our God.