Mark 13:33-37

13:33  Take ye heed, watch and pray: for ye know not when the time is.

13:34  [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 porter to watch.

13:35  Watch ye therefore: for ye know not when the master of the house cometh, at even, or at midnight, or at the cockcrowing, or in the morning:

13:36  Lest coming suddenly he find you sleeping.

13:37  And what I say unto you I say unto all, Watch.