en_tn/2ki/09/17.md

watchman

This man was a guard (UDB) or lookout.

the company of Jehu as he came at a distance

AT: "Jehu and his men as they were still far away;"

What have you to do with peace?

Jehu was letting the messenger know that he had not come peacefully. AT: "It is not your concern if I have come in peace!" (See: rc://en/ta/man/translate/figs-rquestion)

The messenger has met them, but he is not coming back

The watchman told King Joram that the man he sent out is not coming back with a reply to the king's question.