Matthew 24:43

41 Two women will be grinding at the mill: one will be taken and the other left.

42 Therefore keep watch, because you do not know the day on which your Lord will come.

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.

44 For this reason, you also must be ready, because the Son of Man will come at an hour you do not expect.

45 Who then is the faithful and wise servant, whom the master has put in charge of his household, to give the others their food at the proper time?

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
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.
WEB
But know this, that if the master of the house had known in what watch of the night the thief was coming, he would have watched, and would not have allowed his house to be broken into.
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.
DARBY
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].
BLB
But know this, that if the master of the house had known in which watch the thief comes, he would have watched and would not have allowed his house to be broken into.
ÅB
Men det skal dere vite at hvis husets herre visste i hvilken nattevakt tyven kom, så ville han våke og ikke la noen bryte seg inn i huset sitt.
OTB
Men forstå dette: Hvis husets herre hadde visst når på natten tyven kom, ville han ha våket og ikke latt huset bli brutt opp.
B1930
Men det skal I vite at dersom husbonden visste i hvilken nattevakt tyven kom, da vilde han våke, og ikke la nogen bryte inn i sitt hus.

Study notes (Tyndale)

Original text and word study

Cross references