Bible Notes Online - 2-Kings 9 - ESV
Commentary

v1-5: The kings of Judah and Israel were related at this period, but they followed in the ways of Ahab. This marked a low point in the histories of both nations. After this period of apostasy and chaos, there came stability in Israel through Jehu, and his dynasty, and in Judah through Joash.

Elisha's instructions to his servant were to anoint Jehu king of Israel.

v6-10: The prophet, sent by Elisha, had words beyond those given by Elisha. Jehu's ascent to the throne meant the destruction of certain families. Jehu turned out to be ruthless, but this was necessary to bring some cleansing to Israel.

v11: Jehu apparently had little respect for the prophet; it may be that the prophet was already known to Jehu and the commanders, "You know the man.."

God's choice for king is not necessarily the most godly man available, but the right man for the job at that time. Saul, Cyrus, Hazael, were appointed by God for specific purposes.

v12-13: Jehu's associates readily accepted him as king; he had perhaps already shown himself to be an effective leader.

v14-16: The kings were at Jezreel, see 8.29. This gave Jehu the opportunity he needed.

v17-19: "Do you come in peace?" Jehoram wanted to remain as king, his messengers were sent to see whether the approaching horsemen would support him or not.

v20: The watchman recognised Jehu by his driving; he was evidently well-known.

v21-22: Jehoram went out to Jehu, asking him the same question, "Have you come in peace". Jehu's answer was uncompromising; Jehoram had promoted sin in Israel, namely witchcraft and idolatry. He had sought peace in the nation, but peace without reference to the God of Israel. In particular, the influence of Jezebel was significant.

v23-26: See 1 Kings 21.19; Ahab and Jehoram received their deserved punishment, as prophesied by Elijah. Jehu witnessed the original prophecy as well as its fulfilment.

v27-29: Ahaziah was also killed by Jehu. Comparing 8.25, Ahaziah had reigned in Judah with Jehoram for one year.

v30-31: Jezebel came with her accusation against Jehu. She called him Zimri (1 Kings 16.9-10) who had also killed his master. Jezebel too looked for peace.

v32-37: Jehu had allies even in Jezebel's house; they threw her to the ground, where her body was devoured by dogs, fulfilling the words of Elijah, 1 Kings 21.23.