Matthew 24:42

Watch therefore: for you know not what hour your Lord does come.

Matthew 25:13

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

Luke 21:36

Watch therefore, and pray always, that you 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 you also ready: for in such an hour as you think not the Son of man comes.

1 Corinthians 16:13

Watch, stand fast in the faith, be 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 knows 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 watches, and keeps his garments, lest he walk naked, and they see his shame.

Matthew 26:38-41

Then said he unto them, My soul is exceedingly sorrowful, even unto death: tarry you here, and watch with me.

Mark 13:33-37

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

Luke 12:35-40

Let your waists be girded about, and your lamps 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 therefore sober minded, and watch unto prayer.

1 Peter 5:8

Be sober, be vigilant; because your adversary the devil, as a roaring lion, walks 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 your 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 knows no man, no, not the angels of heaven, but my Father only.
Mark 13:33
Take you heed, watch and pray: for you know not when the time is.

General references

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