Take you heed, watch and pray: for you know not when the time is. For the Son of man is as a man taking a far journey, who left his house, and gave authority to his servants, and to every man his work, and commanded the doorkeeper to watch. Watch you therefore: for you know not when the Master of the house comes, at evening, or at midnight, or at the cock crowing, or in the morning: Lest coming suddenly he find you sleeping. And what I say unto you I say unto all, Watch. (Mark 13:33-37)