Bible Verses About Towers: Watchmen posted on, in times of danger

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?'

On my charge I stand, and I station myself on a bulwark, and I watch to see what He doth speak against me, and what I do reply to my reproof.