2 Kings 10:16-18
16 And he said, Come with me, and see my zeal for the Lord. So they made him ride in his chariot.
17 And when he came to Samaria, he slew all that remained unto Ahab in Samaria, till he had destroyed him, according to the saying of the Lord, which he spake to Elijah.
18 ¶ And Jehu gathered all the people together, and said unto them, Ahab served Baal a little; but Jehu shall serve him much.Read full chapter