Charles Ellicott Commentary 2 Kings 9:21

"And Joram said, Make ready. And they made ready his chariot. And Joram king of Israel and Ahaziah king of Judah went out, each in his chariot, and they went out to meet Jehu, and found him in the portion of Naboth the Jezreelite." — 2 Kings 9:21 (ASV)

Make ready. —Literally, bind—that is, the horses to the chariot.

And his chariot was made ready. —Literally, And one bound his chariot.

Against Jehu. —Rather, to meet Jehu. Joram was curious to know why his messengers had not returned, as well as why the commander-in-chief had left the seat of war. Had he suspected treachery, he would hardly have left the shelter of the walls of Jezreel, and ventured forth without a guard.

In the portion of Naboth. —Naboth’s vineyard, which now formed part of the pleasure-grounds of the palace. (See 1 Kings 21:16.)