2 Chronicles 32:20-21

Then Hezekiah the king and Isaiah the prophet, the son of Amoz, prayed because of this and cried to heaven. And the LORD sent an angel, who cut off all the mighty warriors and commanders and officers in the camp of the king of Assyria. So he returned with shame of face to his own land. And when he came into the house of his god, some of his own sons struck him down there with the sword.