Now the watchman standing on the tower in Jezreel saw Jehu’s troops approaching, and he called out, “I see a company of troops!” “Choose a rider,” Joram commanded. “Send him out to meet them and ask, ‘Have you come in peace?’”
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
Then he sent out a second on horseback, which came to them, and said,.... The same as the first messenger did, and had the same answer, and was bid to do the same as in the preceding verse. Then he sent out a second on horseback, which came to them, and said,....
there stood a watchman on the tower of Jezreel--The Hebrew palaces, besides being situated on hills had usually towers attached to them, not only for the pleasure of a fine prospect, but as posts of useful observation. The ancient watchtower of Jezreel must have commanded a view of the whole region eastward, nearly down to the Jordan.