GOD'S WORD® Translation
"Of course, you realize that if the homeowner had known at what hour the thief was coming, he would not have let him break into his house.

American Standard Version
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 have left his house to be broken through.

Berean Study Bible
But understand this: If the homeowner had known at what hour the thief was coming, he would not have let his house be broken into.

Douay-Rheims Bible
But this know ye, that if the householder did know at what hour the thief would come, he would surely watch, and would not suffer his house to be broken open.

English Revised Version
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 have left his house to be broken through.

King James Bible
And this know, that if the goodman of the house had known what hour the thief would come, he would have watched, and not have suffered his house to be broken through.

World English Bible
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.

Young's Literal Translation
'And this know, that if the master of the house had known what hour the thief doth come, he would have watched, and would not have suffered his house to be broken through;

Luke 12:39 Additional Translations ...