1 Thessalonians 5:2
You yourselves know perfectly that the Day of the Lord will come as a thief in the night.
2 Peter 3:10
But the Day of the Lord will come like a thief; and on that Day the heavens will vanish with a crash, the heavenly bodies will melt with fervent heat, and the earth and all its works will be burned up.
Revelation 3:3
Call to mind, then, what you have received and heard, and hold to it, and repent. Unless you are on the watch, I will come as a thief, and you will never know at what hour I am coming upon you.
Revelation 16:15
Lo, I am coming like a thief. Blessed is the who is on the watch and guarding his clothing, so that he may not walk naked, and they gaze on his shame.
Matthew 24:42-44
Keep guard then, for you do not know the day on which your Master is coming.
Matthew 25:13
"Be watchful then, for you know neither the day nor the hour.
Mark 13:34-35
Take heed! Awake! for you never know the time. As a man gone abroad and leaving his house gives authority to his slaves, to each his task; and orders the porter to keep watch;
Luke 12:39-40
"However, you know this, that if the master of the house had known in what hour the thief would come, he would have watched and not have allowed his house to be broken into.
1 Corinthians 1:8
He will also keep you perfectly stedfast unto the end, so that you will be unreproveable in the Day of our Lord Jesus Christ.