But understand this: If the homeowner had known in which watch of the night the thief was coming, he would have kept watch and would not have let his house be broken into.
KJV
But know this, that if the goodman of the house had known in what watch the thief would come, he would have watched, and would not have suffered his house to be broken up.
ASV
But know this, that if the master of the house had known in what watch the thief was coming, he would have watched, and would not have suffered his house to be broken through.