'Watchman' in the Bible

And the watchman is standing on the tower in Jezreel, and seeth the company of Jehu in his coming, and saith, 'A company I see;' and Joram saith, 'Take a rider and send to meet them, and let him say, Is there peace?'

and the rider on the horse goeth to meet him, and saith, 'Thus said the king, Is there peace?' and Jehu saith, 'What -- to thee and to peace? turn round behind me.' And the watchman declareth, saying, 'The messenger came unto them, and he hath not returned.'

And the watchman declareth, saying, 'He came unto them, and he hath not returned, and the driving is like the driving of Jehu son of Nimshi, for with madness he driveth.'