50 the lord of that servant will arrive in a day when he doth not expect, and in an hour of which he doth not know,
Matthew 24:50 Cross References - YLT
Proverbs 29:1
1 A man often reproved, hardening the neck, Is suddenly broken, and there is no healing.
Matthew 24:42-44
42 `Watch ye therefore, because ye have not known in what hour your Lord doth come;
43 and this know, that if the master of the house had known in what watch the thief doth come, he had watched, and not suffered his house to be broken through;
44 because of this also ye, become ye ready, because in what hour ye do not think, the Son of Man doth come.
1 Thessalonians 5:2-3
Revelation 3:3
3 `Remember, then, how thou hast received, and heard, and be keeping, and reform: if, then, thou mayest not watch, I will come upon thee as a thief, and thou mayest not know what hour I will come upon thee.