2 Kings 9:5-7

5When he arrived, he found the army officers sitting together. “I have a message for you, commander,” he said. “For which of us?” asked Jehu. “For you, commander,” he replied.

6Jehu got up and went into the house. Then the prophet poured the oil on Jehu’s head and declared, “This is what the Lord, the God of Israel, says: ‘I anoint you king over the Lord’s people Israel.

7You are to destroy the house of Ahab your master, and I will avenge the blood of my servants the prophets and the blood of all the Lord’s servants shed by Jezebel.