'Watchman' in the Bible

While the watchman was standing guard in the tower at Jezreel, he watched Jehu's entourage arrive. So he called out, "I see a group arriving." Joram ordered, "Take a horseman, send him out to meet them, and have him ask, "Have you come in peace?'"

So a horseman went out, greeted Jehu and said, "This is what the king said: "Have you come in peace?'" But Jehu responded, "What do you have to do with peace? Fall in behind me." The watchman reported, "The messenger arrived there, but he hasn't returned."

The watchman reported to Joram, "He arrived there, but he hasn't returned. Also, he drives like Nimshi's son Jehu drives irrationally!"