Luke 21:36

But watch ye at every season, praying that ye may have full strength to escape all these things that are about to come to pass, and to stand before the Son of Man."

Matthew 26:41

Watch, and pray, that ye enter not into temptation. The spirit, indeed, is willing, but the flesh is weak."

Matthew 25:13

Watch, therefore, because ye know not the day, nor the hour!

Mark 13:33

Take heed, watch [and pray]; for ye know not when the time is.

Luke 18:1

And He spake a parable to them, to the end that they ought always to pray, and not to faint;

1 Corinthians 16:13

Watch, stand fast in the faith; be men; be strong.

1 Peter 5:8

Be sober, be watchful. Your adversary the Devil, as a roaring lion, is going about, seeking whom he may devour;

Matthew 24:42

Watch ye, therefore, because ye know not in what day your Lord is coming.

Mark 13:37

And what I say to you, I say to all, 'Watch.'"

Luke 12:37-40

Happy are those servants, whom their lord, when coming, shall find watching! Verily I say to you, that he will gird himself, and make them recline; and, coming near, he will serve them.

Luke 20:35

but those accounted worthy to obtain that age, and the resurrection from the dead, neither marry, nor are given in marriage;

Ephesians 6:13-14

On this account, take up the whole armor of God, that ye may be able to withstand in the evil day; and, having fully accomplished all, to stand.

Ephesians 6:18-19

with all prayer and supplication praying at every opportunity in the Spirit, and watching thereunto in all perseverance and supplication for all the saints;

Colossians 4:2

Persevere in prayer, watching therein with thanksgiving;

1 Thessalonians 5:17

pray without ceasing.

2 Thessalonians 1:5-6

a proof of the righteous judgment of God, to the end that ye may be accounted worthy of the Kingdom of God, for which ye also suffer;

2 Timothy 4:5

But be sober in all things, suffer hardship, do the work of an evangelist, fully accomplish your ministry.

1 Peter 4:7

But the end of all things has drawn near; be ye, therefore, of sound mind, and be sober unto prayers;

1 John 2:28

And now, little children, abide in Him; that, if He shall be manifested, we may have confidence, and not be put away from Him with shame at His coming.

Jude 1:24

Now to Him Who is able to guard you from stumbling, and to set you without blemish, in gladness, before the presence of His glory,

Treasury of Scripture Knowledge

Summary

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.

Bible References

Pray

Luke 18:1
And He spake a parable to them, to the end that they ought always to pray, and not to faint;
Ephesians 6:18
with all prayer and supplication praying at every opportunity in the Spirit, and watching thereunto in all perseverance and supplication for all the saints;
Colossians 4:2
Persevere in prayer, watching therein with thanksgiving;
1 Thessalonians 5:17
pray without ceasing.

Accounted

Luke 20:35
but those accounted worthy to obtain that age, and the resurrection from the dead, neither marry, nor are given in marriage;
2 Thessalonians 1:5
a proof of the righteous judgment of God, to the end that ye may be accounted worthy of the Kingdom of God, for which ye also suffer;

General references

Matthew 25:13
Watch, therefore, because ye know not the day, nor the hour!
Mark 13:33
Take heed, watch [and pray]; for ye know not when the time is.
Luke 12:40
Be ye also ready; because at an hour ye think not the Son of Man cometh."
Luke 17:30
after the same manner shall it be in the day the Son of Man is revealed.