Hebrews 10:39

But we are not of those who withdraw to perdition; but of them that believe to the saving of the soul.

Mark 16:16

he that believeth and is baptized, shall be saved; but he that believeth not, shall be condemned.

Luke 11:26

Then he goeth and taketh with him seven other spirits more wicked than himself, and they enter in and dwell there: and so the last state of that man is worse than the first.

John 3:15-16

that whosoever believeth on Him may not perish, but have eternal life.

John 5:24

Verily, verily I say unto you, he, that heareth my word, and believeth in Him that sent me, hath everlasting life, and shall not come under condemnation; but is passed from death to life.

John 6:40

And this is the will of Him that sent me, that every one who looketh attentively at the Son, and so believeth on Him, may have eternal life: and I will raise him up at the last day.

John 17:12

While I was with them in the world, I kept them in thy name; I have preserved those whom Thou gavest me, and none of them is lost; except the son of perdition, that the scripture might be fulfilled.

John 20:31

but these things are written, that ye may believe, that Jesus is the Christ, the Son of God; and that believing ye may have life through his name.

Acts 16:30-31

and bringing them out, he said, Sirs, what must I do to be saved?

Romans 10:9-10

and believe in thine heart, that God hath raised Him from the dead, thou shalt be saved.

1 Thessalonians 5:9

For God hath not appointed us to wrath, but to the obtaining of salvation by our Lord Jesus Christ,

2 Thessalonians 2:3

Let not any one deceive you by any means; for it shall not come till there come an apostasy first, and the man of sin be revealed,

2 Thessalonians 2:12-14

that they may all be condemned, who believed not the truth, but had pleasure in iniquity.

1 Timothy 6:9

But they, that will be rich, fall into temptation and a snare, and into many foolish and hurtful lusts, which plunge men into ruin and perdition.

Hebrews 6:6-9

and the powers of the gospel-age, and yet fall away, should be renewed again to repentance: since they again crucify to themselves the Son of God, and make an open example of Him.

Hebrews 10:26

For if we sin wilfully after having received the knowledge of the truth, there remaineth no more sacrifice for sins;

Hebrews 11:1

Now faith is the confident expectation of things hoped for, and a conviction of things not seen:

1 Peter 1:5

who are kept by the power of God through faith unto salvation ready to be revealed in the last time.

2 Peter 3:7

But the heavens and the earth, that now are, by the same Word are kept in store, reserved unto fire on the day of judgement and destruction of ungodly men.

1 John 5:5

Who then is he that overcometh the world, but he who believeth that Jesus is the Son of God?

1 John 5:16

If any one see his brother commit a sin which is not unto death, let him pray for him, and God will give him life, that is for them that do not sin unto death. There is a sin unto death: and for that I do not say that he should pray.

Jude 1:12-13

These are spots in your love-feasts, feeding themselves without fear, when they are feasting with you: clouds without water, carried about by the winds; trees withered and without fruit, twice dead and rooted up; raging waves of the sea, foaming out their own shame;

Revelation 17:8

The beast, which thou sawest, was, and is not; but will rise out of the abyss, and go into perdition: and they that dwell on the earth (whose names are not written on the book of life from the foundation of the world) shall wonder, when they behold the beast that was, and is not, and yet is to be.

Revelation 17:11

And the beast that was, and is not, he is the eighth, and is as one of the seven, and goeth into perdition.

Treasury of Scripture Knowledge

Summary

But we are not of them who draw back unto perdition; but of them that believe to the saving of the soul.

General references

Bible References

We are

Hebrews 6:6
and the powers of the gospel-age, and yet fall away, should be renewed again to repentance: since they again crucify to themselves the Son of God, and make an open example of Him.
Luke 11:26
Then he goeth and taketh with him seven other spirits more wicked than himself, and they enter in and dwell there: and so the last state of that man is worse than the first.
1 John 5:16
If any one see his brother commit a sin which is not unto death, let him pray for him, and God will give him life, that is for them that do not sin unto death. There is a sin unto death: and for that I do not say that he should pray.
Jude 1:12
These are spots in your love-feasts, feeding themselves without fear, when they are feasting with you: clouds without water, carried about by the winds; trees withered and without fruit, twice dead and rooted up; raging waves of the sea, foaming out their own shame;

Unto

Hebrews 10:26
For if we sin wilfully after having received the knowledge of the truth, there remaineth no more sacrifice for sins;
John 17:12
While I was with them in the world, I kept them in thy name; I have preserved those whom Thou gavest me, and none of them is lost; except the son of perdition, that the scripture might be fulfilled.
2 Thessalonians 2:3
Let not any one deceive you by any means; for it shall not come till there come an apostasy first, and the man of sin be revealed,
1 Timothy 6:9
But they, that will be rich, fall into temptation and a snare, and into many foolish and hurtful lusts, which plunge men into ruin and perdition.
2 Peter 3:7
But the heavens and the earth, that now are, by the same Word are kept in store, reserved unto fire on the day of judgement and destruction of ungodly men.
Revelation 17:8
The beast, which thou sawest, was, and is not; but will rise out of the abyss, and go into perdition: and they that dwell on the earth (whose names are not written on the book of life from the foundation of the world) shall wonder, when they behold the beast that was, and is not, and yet is to be.

General references

Matthew 24:13
But he that endures to the end, shall be saved:
Luke 17:32
Remember Lot's wife. Whosoever shall seek to save his life, shall lose it;