50 the master of that slave will come on a day that he does not expect and at an hour that he does not know,
Matthew 24:50 Cross References - LEB
Proverbs 29:1
1 A man who is reproved, being stubborn of neck— suddenly he will be broken, and there will not be healing.
Matthew 24:42-44
42 Therefore be on the alert, because you do not know what day your Lord is coming!
43 But understand this: that if the master of the house had known what watch of the night the thief was coming, he would have stayed awake and would not have let his house be broken into.
44 For this reason you also must be ready, because the Son of Man is coming at an hour that you do not think he will come.*
1 Thessalonians 5:2-3
Revelation 3:3
3 Therefore remember how you have received and heard, and observe it, and repent. If therefore you are not on the alert, I will come like a thief, and you will never know at what hour I will come against you.