7 You are to destroy the family of Ahab, your master. In this way, I will avenge the murder of my prophets and all the Lord 's servants who were killed by Jezebel. 8 The entire family of Ahab must be wiped out. I will destroy every one of his male descendants, slave and free alike, anywhere in Israel. 9 I will destroy the family of Ahab as I destroyed the families of Jeroboam son of Nebat and of Baasha son of Ahijah. 10 Dogs will eat Ahab's wife Jezebel at the plot of land in Jezreel, and no one will bury her." Then the young prophet opened the door and ran.
11 Jehu went back to his fellow officers, and one of them asked him, "What did that madman want? Is everything all right?" "You know how a man like that babbles on," Jehu replied. 12 "You're hiding something," they said. "Tell us." So Jehu told them, "He said to me, 'This is what the Lord says: I have anointed you to be king over Israel.'" 13 Then they quickly spread out their cloaks on the bare steps and blew the ram's horn, shouting, "Jehu is king!"
Matthew Henry's Commentary on 2 Kings 9:7-13
Commentary on 2 Kings 9:1-10
(Read 2 Kings 9:1-10)
In these and the like events, we must acknowledge the secret working of God, disposing men to fulfil his purposes respecting them. Jehu was anointed king over Israel, by the Lord's special choice. The Lord still had a remnant of his people, and would yet preserve his worship among them. Of this Jehu was reminded. He was commanded to destroy the house of Ahab, and, as far as he acted in obedience to God, and upon right principles, he needed not to regard reproach or opposition. The murder of God's prophets is strongly noticed. Jezebel persisted in idolatry and enmity to Jehovah and his servants, and her iniquity was now full.
Commentary on 2 Kings 9:11-15
(Read 2 Kings 9:11-15)
Those who faithfully deliver the Lord's message to sinners, have in all ages been treated as madmen. Their judgment, speech, and conduct are contrary to those of other men; they endure much in pursuit of objects, and are influenced by motives, into which the others cannot enter. But above all, the charge is brought by the worldly and ungodly of all sorts, who are mad indeed; while the principles and practice of the devoted servants of God, prove to be wise and reasonable. Some faith in the word of God, seems to have animated Jehu to this undertaking.