Matthew 24:48-51
But if that evil servant says in his heart, My Lord delays his coming,
Mark 13:32-37
But of that day, and hour, knows no man, not an angel in heaven, nor the Son; but the Father.
Luke 21:34-36
Take heed to yourselves, that your hearts be not oppressed with revelling and drunkenness, and worldly cares, and that day come upon you suddenly;
1 Thessalonians 5:2-3
for you yourselves know perfectly that the day of the Lord comes like a thief in the night.
Revelation 3:3
Remember therefore how you have received and heard, and watch, and change your minds. If therefore you do not watch, I will come as a thief, and you shall not know at what hour I will come upon you.