2 Kings 9:6-7

He got up and went to the house, and poured the olive oil on his head and said to him, “Thus says Yahweh, the God of Israel: ‘I hereby anoint you as king over the people of Yahweh, over Israel. You will destroy the house of Ahab your master, and you will avenge the blood of my servants the prophets and the blood of all of the servants of Yahweh, from the hand of Jezebel.