Revelation 3:2

Rouse yourself and keep awake, and strengthen those things which remain but have well-nigh perished; for I have found no doings of yours free from imperfection in the sight of My God.

Matthew 6:2-4

When you give in charity, never blow a trumpet before you as the hypocrites do in the synagogues and streets in order that their praises may be sung by men. I solemnly tell you that they already have their reward.

Matthew 23:5

And everything they do they do with a view to being observed by men; for they widen their phylacteries and make the tassels large,

Matthew 23:28-38

The same is true of you: outwardly you seem to the human eye to be good and honest men, but, within, you are full of insincerity and disregard of God's Law.

Matthew 24:42-51

Be on the alert therefore, for you do not know the day on which your Lord is coming.

Matthew 25:13

"Keep awake therefore; for you know neither the day nor the hour.

Mark 13:33-37

Take care, be on the alert, and pray; for you do not know when it will happen.

Luke 22:31-32

"Simon, Simon, I tell you that Satan has obtained permission to have all of you to sift as wheat is sifted.

Acts 18:23

After spending some time in Antioch, Paul set out on a tour, visiting the whole of Galatia and Phrygia in order, and strengthening all the disciples.

Acts 20:28-31

"Take heed to yourselves and to all the flock among which the Holy Spirit has placed you to take the oversight for Him and act as shepherds to the Church of God, which He has bought with His own blood.

2 Timothy 4:1-4

I solemnly implore you, in the presence of God and of Christ Jesus who is about to judge the living and the dead, and by His Appearing and His Kingship:

1 Peter 4:7

But the end of all things is now close at hand: therefore be sober-minded and temperate, so that you may give yourselves to prayer.

1 Peter 5:8

Curb every passion, and be on the alert. Your great accuser, the Devil, is going about like a roaring lion to see whom he can devour.

Revelation 2:4

Yet I have this against you--that you no longer love Me as you did at first.

Revelation 16:15

("I am coming like a thief. Blessed is the man who keeps awake and guards his raiment for fear he walk about ill-clad, and his uncomeliness become manifest.")

Treasury of Scripture Knowledge

Summary

Be watchful, and strengthen the things which remain, that are ready to die: for I have not found thy works perfect before God.

Bible References

Watchful

Revelation 16:15
("I am coming like a thief. Blessed is the man who keeps awake and guards his raiment for fear he walk about ill-clad, and his uncomeliness become manifest.")
Matthew 24:42
Be on the alert therefore, for you do not know the day on which your Lord is coming.
Matthew 25:13
"Keep awake therefore; for you know neither the day nor the hour.
Mark 13:33
Take care, be on the alert, and pray; for you do not know when it will happen.
Acts 20:28
"Take heed to yourselves and to all the flock among which the Holy Spirit has placed you to take the oversight for Him and act as shepherds to the Church of God, which He has bought with His own blood.
2 Timothy 4:1
I solemnly implore you, in the presence of God and of Christ Jesus who is about to judge the living and the dead, and by His Appearing and His Kingship:
1 Peter 4:7
But the end of all things is now close at hand: therefore be sober-minded and temperate, so that you may give yourselves to prayer.
1 Peter 5:8
Curb every passion, and be on the alert. Your great accuser, the Devil, is going about like a roaring lion to see whom he can devour.

Strengthen

Revelation 2:4
Yet I have this against you--that you no longer love Me as you did at first.
Luke 22:31
"Simon, Simon, I tell you that Satan has obtained permission to have all of you to sift as wheat is sifted.
Acts 18:23
After spending some time in Antioch, Paul set out on a tour, visiting the whole of Galatia and Phrygia in order, and strengthening all the disciples.

Thy works

Matthew 6:2
When you give in charity, never blow a trumpet before you as the hypocrites do in the synagogues and streets in order that their praises may be sung by men. I solemnly tell you that they already have their reward.
Matthew 23:5
And everything they do they do with a view to being observed by men; for they widen their phylacteries and make the tassels large,

General references

Matthew 25:7
"Then all those bridesmaids roused themselves and trimmed their torches.
Mark 13:33
Take care, be on the alert, and pray; for you do not know when it will happen.
1 Corinthians 11:31
If, however, we estimated ourselves aright, we should not be judged.