Matthew 24:42

Watch therefore, because ye know not at what hour your Lord comes.

Matthew 25:13

Watch therefore, because ye know not the day nor the hour in which the son of man comes.

Luke 21:36

Watch ye therefore, making supplication at all times, so that ye may be considered worthy to escape all these things going to happen, and to stand before the Son of man.

Matthew 24:44

Because of this ye also be ready, because in that hour ye think not the Son of man comes.

1 Corinthians 16:13

Watch ye, stand firm in the faith, act like men, be strong.

1 Thessalonians 5:6

So then let us not sleep, as also the others, but let us watch and be sober.

Matthew 24:36

But about that day and hour no man knows, not even the agents of the heavens, except my Father only.

Revelation 16:15

(Behold, I come as a thief. Blessed is he who watches, and keeps his garments, so that he may not walk naked, and they see his shame.)

Matthew 26:38-41

Then Jesus says to them, My soul is deeply grieved, as far as of death. Remain ye here and watch with me.

Mark 13:33-37

Watch ye! Be alert and pray, for ye know not when the time is,

Luke 12:35-40

Let your loins be girded about, and the lights burning,

Romans 13:11

And this, knowing the time, that the hour is now for us to awake out of sleep. For our salvation is now nearer than when we believed.

1 Peter 4:7

But the end of all things has approached. Therefore be serious, and be sober for the prayers.

1 Peter 5:8

Be sober, be vigilant. Your opponent the devil, as a roaring lion, walks about seeking whom to devour.

Revelation 3:2-3

Become thou watchful, and strengthen the remaining things that thou were going to throw away, for I have not found thy works made complete 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 about that day and hour no man knows, not even the agents of the heavens, except my Father only.
Mark 13:33
Watch ye! Be alert and pray, for ye know not when the time is,

General references

Matthew 24:36
But about that day and hour no man knows, not even the agents of the heavens, except my Father only.
Matthew 25:13
Watch therefore, because ye know not the day nor the hour in which the son of man comes.
Mark 13:33
Watch ye! Be alert and pray, for ye know not when the time is,
Luke 12:40
Therefore, ye also become ready, because the Son of man comes at that hour ye do not suppose.