Luke 12:38 in the King James Version
And if he shall come in the second watch, or come in the third watch, and find them so, blessed are those servants.
Context
37 Blessed are those servants whom the lord will find watching when he comes. Most certainly I tell you that he will dress himself, make them recline, and will come and serve them.
38 They will be blessed if he comes in the second or third watch and finds them so.
39 But know this, that if the master of the house had known in what hour the thief was coming, he would have watched and not allowed his house to be broken into.