Luke 12:39-40 Lk. 12:39-40
39 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. 40 Be ye therefore ready also: for the Son of man cometh at an hour when ye think not.
1. Thessalonians 5:2 1. Thess. 5:2
For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.