Matthew 24:42

Watch, therefore, for you know not on what day your Lord comes,

Matthew 25:13

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

Luke 21:36

But watch continually, praying that you may be accounted worthy to escape all these things which are about to occur, 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

Be watchful, stand firm in the faith, be manly, be strong,

1 Thessalonians 5:6

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

Matthew 24:36

But of that day and hour no man knows, nor the angels of heaven; but my Father only.

Revelation 16:15

Behold, I come as a thief; blessed is he that watches and keeps on his clothes, lest he walk naked and they see his shame.

Matthew 26:38-41

Then he said to them, My soul is sorrowful even to death; remain here and watch with me.

Mark 13:33-37

Observe, watch, for you know not when the time is.

Luke 12:35-40

Stand with your loins girded, and your candles lighted,

Romans 13:11

And [do] this, knowing the time, that it is already the hour that we should be waked from 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 sober therefore, and watch in prayers;

1 Peter 5:8

Be sober, be watchful. Your adversary the devil goes about like a roaring lion, seeking whom he may devour;

Revelation 3:2-3

Be watchful, confirm the rest who are about to die. For I have not found your works perfect before my 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 no man knows, nor the angels of heaven; but my Father only.
Mark 13:33
Observe, watch, for you know not when the time is.

General references

Matthew 24:36
But of that day and hour no man knows, nor the angels of heaven; but my Father only.
Matthew 25:13
Watch, therefore, for you know not the day nor the hour.
Mark 13:33
Observe, watch, for you know not when the time is.
Luke 12:40
Be you also ready; for in an hour when you think not the Son of man comes.