2 Peter 3:14

Therefore, dear friends, [because you] are waiting for these [things], make every effort to be found at peace, spotless and unblemished in him.

1 Corinthians 15:58

So then, my dear brothers, be steadfast, immovable, always abounding in the work of the Lord, [because you] know that your labor is not [in] vain in the Lord.

1 Thessalonians 3:13

so that your hearts may be established blameless in holiness before our God and Father at the coming of our Lord Jesus with all his saints.

1 Thessalonians 5:23

Now may the God of peace himself sanctify you completely, and may your spirit and soul and body be kept complete, blameless at the coming of our Lord Jesus Christ.

Philippians 1:10

so that you may approve what is superior, in order that you may be sincere and blameless in the day of Christ,

Matthew 24:26

Therefore if they say to you, 'Behold, he is in the wilderness,' do not go out, [or] 'Behold, he is in the inner rooms,' do not believe [it]!

Luke 2:29

"Now dismiss your slave in peace, Lord, according to your word.

Luke 12:43

Blessed [is] that slave whom his master will find so doing [when he] comes back.

1 Corinthians 1:8

who will also confirm you until the end, blameless in the day of our Lord Jesus Christ.

Philippians 2:15

in order that you may become blameless and innocent, children of God without fault in the midst of a crooked and perverted generation, among whom you shine as stars in the world,

Philippians 3:20

For our commonwealth exists in heaven, from which also we eagerly await a savior, the Lord Jesus Christ,

Hebrews 9:28

thus also Christ, having been offered once in order to bear the sins of many, will appear for the second time without reference to sin to those who eagerly await him for salvation.

James 1:27

Pure and undefiled religion in the sight of our God and Father is this: to look after orphans and widows in their affliction, [and] to keep oneself unstained by the world.

2 Peter 1:5-10

and [for] this same [reason], and [by] applying all diligence, supply with your faith excellence of character, and with excellence of character, knowledge,

1 John 3:3

And everyone who has this hope in him purifies himself, just as that one is pure.

Treasury of Scripture Knowledge

Summary

Wherefore, beloved, seeing that ye look for such things, be diligent that ye may be found of him in peace, without spot, and blameless.

Be diligent

Bible References

Seeing

Philippians 3:20
For our commonwealth exists in heaven, from which also we eagerly await a savior, the Lord Jesus Christ,
Hebrews 9:28
thus also Christ, having been offered once in order to bear the sins of many, will appear for the second time without reference to sin to those who eagerly await him for salvation.

Be diligent

2 Peter 1:5
and [for] this same [reason], and [by] applying all diligence, supply with your faith excellence of character, and with excellence of character, knowledge,
1 John 3:3
And everyone who has this hope in him purifies himself, just as that one is pure.

In peace

Matthew 24:26
Therefore if they say to you, 'Behold, he is in the wilderness,' do not go out, [or] 'Behold, he is in the inner rooms,' do not believe [it]!
Luke 2:29
"Now dismiss your slave in peace, Lord, according to your word.
Luke 12:43
Blessed [is] that slave whom his master will find so doing [when he] comes back.
1 Corinthians 1:8
who will also confirm you until the end, blameless in the day of our Lord Jesus Christ.
1 Corinthians 15:58
So then, my dear brothers, be steadfast, immovable, always abounding in the work of the Lord, [because you] know that your labor is not [in] vain in the Lord.
Philippians 1:10
so that you may approve what is superior, in order that you may be sincere and blameless in the day of Christ,
1 Thessalonians 3:13
so that your hearts may be established blameless in holiness before our God and Father at the coming of our Lord Jesus with all his saints.
1 Thessalonians 5:23
Now may the God of peace himself sanctify you completely, and may your spirit and soul and body be kept complete, blameless at the coming of our Lord Jesus Christ.

General references

Deuteronomy 6:17
You shall diligently keep the commandments of Yahweh your God and his legal provisions and his rules that he has commanded you.
Proverbs 27:12
[When] the clever sees danger, he hides; the simple go on [and] suffer.
Song of Songs 4:7
You [are] completely beautiful, my beloved! {You are flawless}!
Matthew 25:7
Then all those virgins woke up and trimmed their lamps.
Luke 12:40
You also must be ready, because the Son of Man is coming at an hour that you do not think [he will come]."
Hebrews 13:14
For here we do not have a permanent city, but we seek the [city] that is to come.