If he comes in the second watch (before midnight) or the third watch (after midnight), and finds them so, blessed (happy, fortunate, and to be envied) are those servants!
But understand this: had the householder known in what [part of the night, whether in a night or a morning] watch the thief was coming, he would have watched and would not have allowed his house to be undermined and broken into.
But of this be assured: if the householder had known at what time the burglar was coming, he would have been awake and alert and watching and would not have permitted his house to be dug through and broken into.