Matthew 24:42

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

Matthew 25:13

Watch, therefore, for ye know neither the day nor the hour wherein the Son of man comes.

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; the Son of man is to come in the hour that ye think not.

1 Corinthians 16:13

Watch ye, stand fast in the faith, be brave, 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 no one knows, no, not even the angels of the heavens, 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 he said unto them, My soul is exceeding sorrowful, even unto 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 shall be.

Luke 12:35-40

Let your loins be girded about and your lamps burning,

Romans 13:11

And this, knowing the time, that now it is high time to awaken ourselves out of sleep, for now is our saving health nearer than when we believed.

1 Peter 4:7

But the end of all things is at hand; be ye, therefore, temperate and watch unto prayer.

1 Peter 5:8

Be temperate and 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 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 no one knows, no, not even the angels of the heavens, but my Father only.
Mark 13:33
Take ye heed, watch and pray; for ye know not when the time shall be.

General references

Matthew 24:36
But of that day and hour no one knows, no, not even the angels of the heavens, but my Father only.
Matthew 25:13
Watch, therefore, for ye know neither the day nor the hour wherein the Son of man comes.
Mark 13:33
Take ye heed, watch and pray; for ye know not when the time shall be.
Luke 12:40
Be ye therefore ready also; for the Son of man comes at an hour when ye think not.