Matthew 24:39
and they did not know until the flood came, and took them all away; so shall be the coming of the Son of man.
Matthew 24:50
the lord of that servant will come in a day in which he does not expect, and an hour in which he does not know,
Matthew 25:6
And at midnight there was a cry made, Behold, the bridegroom! go ye out to meet him.
1 Thessalonians 5:2
for you yourselves know well, that the day of the Lord is so coming like a thief in the night.
2 Peter 3:10
But the day of the Lord will come like a thief; in which the heavens will pass away with a great noise, and the elements being scorched up will be dissolved, and the earth and the works in it will be burnt up.