NET
43 But understand this: If the owner of the house had known at what time of night the thief was coming, he would have been alert and would not have let his house be broken into.
Darby
43 But know this, that if the master of the house had known in what watch the thief was coming, he would have watched and not have suffered his house to be dug through [into].
KJV
43 “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.”