Bible Verses About Watchfulness: God especially requires in ministers

Upon thy walls, O Jerusalem, I have appointed watchmen all the day, and all the night, they shall never hold their peace. You that are mindful of the Lord, hold not your peace,

Son of man, I have made thee a watchman to the house of Israel: and thou shalt hear the word out of my mouth, and shalt tell it them from me.

Even as a man who, going into a far country, left his house and gave authority to his servants over every work and commanded the porter to watch.