Luke 12:37-40

They will be blessed when their master comes home, because he sees that they were watching for him. I tell you the truth, the master will dress himself to serve and tell the servants to sit at the table, and he will serve them. Those servants will be blessed when he comes in and finds them still waiting, even if it is midnight or later. “Remember this: If the owner of the house knew what time a thief was coming, he would not allow the thief to enter his house. So you also must be ready, because the Son of Man will come at a time when you don’t expect him!”