'Watchman' in the Bible

Now David was sitting between the two gates: and the watchman went up to the roof of the gate to the wall, and lifted up his eyes, and looked, and, behold, a man running alone.

The watchman cried, and told the king. The king said, "If he is alone, there is news in his mouth." He came closer and closer.

The watchman saw another man running; and the watchman called to the porter, and said, "Behold, a man running alone!" The king said, "He also brings news."

The watchman said, "I think the running of the first one is like the running of Ahimaaz the son of Zadok." The king said, "He is a good man, and comes with good news."

Now the watchman was standing on the tower in Jezreel, and he spied the company of Jehu as he came, and said, "I see a company." Joram said, "Take a horseman, and send to meet them, and let him say, 'Is it peace?'"

So there went one on horseback to meet him, and said, "Thus says the king, 'Is it peace?'" Jehu said, "What do you have to do with peace? Fall in behind me!" The watchman said, "The messenger came to them, but he isn't coming back."

The watchman said, "He came to them, and isn't coming back. The driving is like the driving of Jehu the son of Nimshi; for he drives furiously."

He builds his house as the moth, as a booth which the watchman makes.

Unless Yahweh builds the house, they labor in vain who build it. Unless Yahweh watches over the city, the watchman guards it in vain.

For the Lord said to me, "Go, set a watchman. Let him declare what he sees.

The burden of Dumah. One calls to me out of Seir, "Watchman, what of the night? Watchman, what of the night?"

The watchman said, "The morning comes, and also the night. If you will inquire, inquire. Come back again."

Son of man, I have made you a watchman to the house of Israel: therefore hear the word from my mouth, and give them warning from me.

Son of man, speak to the children of your people, and tell them, When I bring the sword on a land, and the people of the land take a man from among them, and set him for their watchman;

But if the watchman sees the sword come, and doesn't blow the trumpet, and the people aren't warned, and the sword comes, and take any person from among them; he is taken away in his iniquity, but his blood will I require at the watchman's hand.

So you, son of man, I have set you a watchman to the house of Israel; therefore hear the word at my mouth, and give them warning from me.