But know this, that if the owner of the house had known in what watch the thief would come, he would have watched, and would not have allowed his house to be broken into.
All Commentaries on Matthew 24:43 Go To Matthew 24
John Chrysostom
AD 407
For this intent He tells them not, in order that they may watch, that they may be always ready; therefore He says, When ye look not for it, then He will come, desiring that they should be anxiously waiting, and continually in virtuous action.
But His meaning is like this: if the common sort of men knew when they were to die, they would surely strive earnestly at that hour.