Bible Verses About Watchfulness: God especially requires in ministers

I have set watchmen on your walls, Jerusalem; they shall never hold their peace day nor night: you who call on the LORD, take no rest,

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.

“It is like a man, traveling to another country, having left his house, and given authority to his servants, and to each one his work, and also commanded the doorkeeper to keep watch.