50 the lord of that slave will come in a day in which he does not expect and in an hour which he does not know,
Matthew 24:50 Cross References - LITV
Proverbs 29:1
1 A man who hardens his neck when reproved shall be suddenly broken, and there will be no healing.
Matthew 24:42-44
42 Watch, then, for you do not know in what hour your Lord comes.
43 But know this, that if the housemaster had known in what watch the thief comes, he would have watched and not have allowed his house to be dug through.
44 Because of this, you also be ready, for in that hour you think not, the Son of man comes.
1 Thessalonians 5:2-3
Revelation 3:3
3 Then remember how you received and heard, and keep, and repent. If, then, you do not watch, I will come upon you like a thief and you will not at all know what hour I come upon you.