Matthew 24:37

24:37 For just like the days of Noah were, so the coming of the Son of Man will be.

Matthew 24:42-44

24:42 “Therefore stay alert, because you do not know on what day your Lord will come. 24:43 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. 24:44 Therefore you also must be ready, because the Son of Man will come at an hour when you do not expect him.

Matthew 24:50

24:50 then the master of that slave will come on a day when he does not expect him and at an hour he does not foresee,