Jesus has just told His disciples that He is like a man who leaves his house to go away and puts his servants in charge. He gives each of his servants specific tasks and puts one at the door to keep watch. Now, Jesus draws out the lesson.

"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: Lest coming suddenly he find you sleeping. And what I say unto you I say unto all, Watch." - Mark 13:35-37