'Madman' in the Bible

Then Achish said to his servants, “Behold, you see the man behaving as a madman. Why do you bring him to me?

Do I lack madmen, that you have brought this one to act the madman in my presence? Shall this one come into my house?”

Like a madman who throwsFirebrands, arrows and death,

“The Lord has made you priest instead of Jehoiada the priest, to be the overseer in the house of the Lord over every madman who prophesies, to put him in the stocks and in the iron collar,