1 Thessalonians 5:2

For you know perfectly that the Day of Jehovah will come like a thief in the night. (Zephaniah 1:14)

2 Peter 3:10

The day of Jehovah will come as a thief. The heavens will pass away with a great noise. The elements shall be dissolved with intense heat. And the earth and the works in it will be burned up (destroyed). (Joel 2:31) (Zephaniah 1:14)

Revelation 3:3

Remember what you received and heard, and hold fast, and repent. If you do not stay awake, I will come to you like a thief. You will not know the hour when I will come to you.

Revelation 16:15

Behold, I come as a thief. Blessed is he who stays awake and keeps his outer garment, that he does not walk naked and they see his shame.

Matthew 24:42-44

Be alert, for you do not know what day the Lord will come.

Matthew 25:13

Watch therefore, for you do not know the day or the hour.

Mark 13:34-35

It is similar to a man traveling to another country. He leaves his house and gives authority to his servants to do the work. He commands them to watch.

Luke 12:39-40

Know this, that if the master of the house had known in what hour the thief was coming he would have watched. He would not have allowed his house to be broken into.

Jeremiah 23:20

The anger of Jehovah will not turn back until he has performed and carried out the purposes (intent) of his heart. In the last days you will clearly understand it.

1 Corinthians 1:8

He will also confirm (establish) you to the end, that you may be blameless 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 will not turn back until he has performed and carried out the purposes (intent) of his heart. In the last days you will clearly understand it.

General references

Matthew 24:36
No one knows the day and the hour (the period of time). The angels of heaven do not know. The Son does not know. Only the Father knows!
Luke 12:39
Know this, that if the master of the house had known in what hour the thief was coming he would have watched. He would not have allowed his house to be broken into.
Luke 17:27
They ate, they drank and they got married until Noah entered the ark. Then the flood came, and destroyed them all.