1 Thessalonians 5:2

For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.

2 Peter 3:10

But the day of the Lord will come as a thief; in the which the heavens shall pass away with a great noise, and the elements shall be dissolved with fervent heat, and the earth and the works that are therein shall be burned up.

Revelation 3:3

Remember therefore how thou hast received and didst hear; and keep it , and repent. If therefore thou shalt not watch, I will come as a thief, and thou shalt not know what hour I will come upon thee.

Revelation 16:15

(Behold, I come as a thief. Blessed is he that watcheth, and keepeth his garments, lest he walked naked, and they see his shame.)

Matthew 24:42-44

Watch therefore: for ye know not on what day your Lord cometh.

Matthew 25:13

Watch therefore, for ye know not the day nor the hour.

Mark 13:34-35

It is as when a man, sojourning in another country, having left his house, and given authority to his servants, to each one his work, commanded also the porter to watch.

Luke 12:39-40

But know this, that if the master of the house had known in what hour the thief was coming, he would have watched, and not have left his house to be broken through.

Jeremiah 23:20

The anger of Jehovah shall not return, until he have executed, and till he have performed the intents of his heart: in the latter days ye shall understand it perfectly.

1 Corinthians 1:8

who shall also confirm you unto the end, that ye be unreproveable in the day of our Lord Jesus Christ.

Treasury of Scripture Knowledge

Summary

For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.

General references

Bible References

Know

Jeremiah 23:20
The anger of Jehovah shall not return, until he have executed, and till he have performed the intents of his heart: in the latter days ye shall understand it perfectly.

General references

Matthew 24:36
But of that day and hour knoweth no one, not even the angels of heaven, neither the Son, but the Father only.
Luke 12:39
But know this, that if the master of the house had known in what hour the thief was coming, he would have watched, and not have left his house to be broken through.
Luke 17:27
They ate, they drank, they married, they were given in marriage, until the day that Noah entered into the ark, and the flood came, and destroyed them all.

American Standard Version Public Domain