Isaiah 21:6
For thus hath the Lord said unto me: Go, set a watchman, let him declare what he seeth.
2 Kings 9:17-20
And the watchman stood on the tower in Jizreel, and saw Jehu's company as he came, and said, I see a company. And Joram said, Take a horseman, and send to meet them, and let him say, Is it peace?
Isaiah 62:6
I have set watchmen upon thy walls, Jerusalem; all the day and all the night they shall never hold their peace: ye that put Jehovah in remembrance, keep not silence,
Jeremiah 51:12-13
Lift up a banner towards the walls of Babylon, make the watch strong, set the watchmen, prepare the ambushes; for Jehovah hath both devised and done that which he spoke against the inhabitants of Babylon.
Ezekiel 3:17
Son of man, I have appointed thee a watchman unto the house of Israel, and thou shalt hear the word from my mouth, and give them warning from me.
Ezekiel 33:2-7
Son of man, speak to the children of thy people, and say unto them, When I bring the sword upon a land, and the people of the land take one man from among them all, and set him for their watchman:
Habakkuk 2:1-2
I will stand upon my watch, and set me upon the tower, and will look forth to see what he will say unto me, and what I shall answer as to my reproof.