'Horseman' in the Bible

And the watchman on the tower in Jezreel saw Jehu and his band coming, and said, I see a band of people. And Joram said, Send out a horseman to them, and let him say, Is it peace?

So a horseman went out to them and said, The king says, Is it peace? And Jehu said, What have you to do with peace? come after me. And the watchman gave them word, saying, The horseman went up to them, but has not come back.

Then he sent out a second horseman, who came up to them and said, The king says, Is it peace? And Jehu said in answer, What have you to do with peace? come after me.