Then Jehu drew his bow and shot Joram between the shoulders. The arrow pierced his heart, and he slumped down in his chariot.
From Ramoth-Gilead to Jezreel was more than one day's march; about the mid-way between them the river Jordan must be crossed. We may suppose Jehu to have marched with all possible expedition, and to have taken the utmost precaution to prevent the tidings from getting to Jezreel before him; and, at length, we have him within sight first, and then within reach, of the devoted king. I.
Commenting on 2 Kings 9:16-29
But when Ahaziah the king of Judah saw this,.... That Joram was slain: he fled by the way of the garden house, which perhaps stood upon the spot where Naboth's vineyard was, turned into a garden by Ahab: and Jehu followed after him; as far as Samaria, where he was hid, Ch2 22:9, and said, smite him also in the chariot; this order he gave...
Drew a bow with his full strength - The marginal reading is correct: He filled his hand with a bow. That is, "He immediately took up his bow, set his arrow, and let fly." This is the only meaning of the passage. Between his arms - That is, between his shoulders; for he was now turned, and was flying from Jehu.