Matthew 24:42

Watch therefore; for ye know not what hour your Lord cometh.

Matthew 25:13

Watch therefore, for ye know neither the day nor the hour in which the Son of man cometh.

Luke 21:36

Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man.

Matthew 24:44

Therefore be ye also ready: for in such an hour as ye think not, the Son of man cometh.

1 Corinthians 16:13

Watch ye, stand fast in the faith, acquit yourselves like men, be strong.

1 Thessalonians 5:6

Therefore let us not sleep, as do others; but let us watch and be sober.

Matthew 24:36

But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only.

Revelation 16:15

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

Matthew 26:38-41

Then saith he to them, My soul is exceeding sorrowful, even to death: tarry ye here, and watch with me.

Mark 13:33-37

Take ye heed, watch and pray: for ye know not when the time is.

Luke 12:35-40

Let your loins be girt, and your lights burning;

Romans 13:11

And this, knowing the time, that now it is high time to awake out of sleep: for now is our salvation nearer than when we believed.

1 Peter 4:7

But the end of all things is at hand: be ye therefore sober, and watch to prayer.

1 Peter 5:8

Be sober, be vigilant; because your adversary the devil, as a roaring lion, walketh about, seeking whom he may devour:

Revelation 3:2-3

Be watchful, and strengthen the things which remain, that are ready to die: for I have not found thy works perfect before God.

Treasury of Scripture Knowledge

Summary

Watch therefore: for ye know not what hour your Lord doth come.

Bible References

For

Matthew 24:36
But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only.
Mark 13:33
Take ye heed, watch and pray: for ye know not when the time is.

General references

Matthew 24:36
But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only.
Matthew 25:13
Watch therefore, for ye know neither the day nor the hour in which the Son of man cometh.
Mark 13:33
Take ye heed, watch and pray: for ye know not when the time is.
Luke 12:40
Be ye therefore ready also: for the Son of man cometh at an hour when ye think not.