Charles Ellicott Commentary 2 Kings 9:18

"So there went one on horseback to meet him, and said, Thus saith the king, Is it peace? And Jehu said, What hast thou to do with peace? turn thee behind me. And the watchman told, saying, The messenger came to them, but he cometh not back." — 2 Kings 9:18 (ASV)

One on horseback. —Literally, the rider of the horse.

What hast thou to do with peace? —A rough evasion: “What business is it of yours, on what ground I have come?” Conscious of his strength, Jehu can despise the royal message, and the messenger dared not disobey the fierce general, when ordered summarily to the rear. Of course Jehu wished to prevent an alarm being raised in Jezreel.

Came to them. —Literally, came right up to them. (The Hebrew text should be corrected from 2 Kings 9:20.)