Bible Verses About Watchmen: Reported the approach of all strangers

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.”

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.”

Then he sent out a second on horseback, who came to them, and said, “Thus says the king, ‘Is it peace?’” Jehu answered, “What do you have to do with peace? Fall in behind me!”

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.”

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

When he sees a troop, horsemen in pairs, a troop of donkeys, a troop of camels, he shall listen diligently with great attentiveness.”

Behold, here comes a troop of men, horsemen in pairs.” He answered, “Fallen, fallen is Babylon; and all the engraved images of her gods are broken to the ground.