Mark 13:34-37 (New King James Version)

³⁴ It is like a man going to a far country, who left his house and gave authority to his servants, and to each his work, and commanded the doorkeeper to watch. ³⁵ Watch therefore, for you do not know when the master of the house is coming—in the evening, at midnight, at the crowing of the rooster, or in the morning— ³⁶ lest, coming suddenly, he find you sleeping. ³⁷ And what I say to you, I say to all: Watch!”