Matthew 24:42

So you must be on the watch, for you do not know on what day your Master is coming.

Matthew 25:13

So you must be on the watch, for you do not know either the day or the hour.

Luke 21:36

But you must be vigilant and always pray that you may succeed in escaping all this that is going to happen, and in standing in the presence of the Son of Man."

Matthew 24:44

Therefore you must be ready too, for the Son of Man is coming at a time when you do not expect him.

1 Corinthians 16:13

Be on the watch. Stand firm in your faith. Act like men. Show yourselves strong.

1 Thessalonians 5:6

So we must not sleep like other men, but we must be vigilant and composed.

Matthew 24:36

But about that day or hour no one knows, not even the angels in heaven nor the Son, but only the Father.

Revelation 16:15

(See, I am coming like a thief! Blessed is he who keeps awake, and keeps hold of his clothes, so that he will not have to go naked and be put to shame!)

Matthew 26:38-41

Then he said to them, "My heart is almost breaking. You must stay here and keep watch with me."

Mark 13:33-37

You must look out and be on the alert, for you do not know when it will be time;

Luke 12:35-40

You must be ready with your lamps burning,

Romans 13:11

All this especially, because you know this critical time and that it is time for you to wake from your sleep, for our salvation is nearer to us now than when we first believed.

1 Peter 4:7

But the end of all things is near. Be serious and collected, therefore, and pray.

1 Peter 5:8

Be calm and watchful. Your opponent the devil is prowling about like a roaring lion, wanting to devour you.

Revelation 3:2-3

Wake up, and strengthen what is left, although it is already on the point of death, for I have found nothing you have done complete in the sight of 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 or hour no one knows, not even the angels in heaven nor the Son, but only the Father.
Mark 13:33
You must look out and be on the alert, for you do not know when it will be time;

General references

Matthew 24:36
But about that day or hour no one knows, not even the angels in heaven nor the Son, but only the Father.
Matthew 25:13
So you must be on the watch, for you do not know either the day or the hour.
Mark 13:33
You must look out and be on the alert, for you do not know when it will be time;
Luke 12:40
You must be ready too, for the Son of Man is coming at a time when you do not expect him."