Matthew 24:48-51
But if that evil servant say in his heart, My Lord delayeth his coming:
Mark 13:32-37
But of that day and hour knoweth no one, no, not the angels that are in heaven, neither the Son, but the Father.
Luke 21:34-36
But take heed to yourselves, lest at any time your hearts be overloaded with gluttony, and drunkenness, and the cares of this life, and so that day come upon you unawares.
1 Thessalonians 5:2-3
For ye yourselves know perfectly, that the day of the Lord so cometh as a thief in the night.
Revelation 3:3
Remember therefore how thou hast received and heard, and hold fast and repent. If thou watch not, I will come as a thief, and thou shalt not know at what hour I will come upon thee.