Hebrews 10:26

For, if, by choice, we be sinning, after the receiving of the full-knowledge of the truth, no longer, for sins, is there left over, a sacrifice,

2 Peter 2:20-22

For, if, having escaped from the defilements of the world by a personal knowledge of the Lord and Saviour Jesus Christ, but, by the same having again become entangled, they are defeated, the, last, state hath become, for them, worse than, the first;

1 John 5:16

If one should see his brother committing a sin, not unto death, he shall ask, and He will grant unto him life, - for them who are sinning, not unto death. There, is, a sin, unto death: not concerning that, am I saying, that he should make request.

Leviticus 4:2

Speak thou unto the sons of Israel, saying - When any person, shall sin by mistake, departing from any of the commandments of Yahweh, as to things which should not be done, and shall do any one of them, -

Leviticus 4:13

And, if the whole assembly of Israel, shall make a mistake, and a matter be hidden from the eyes of the convocation, - and so they do something, whereby they depart from any of the commandments of Yahweh as to things which should not be done, and become guilty;

Numbers 15:28-31

and the priest shall put a propitiatory-covering over the person who hath made the mistake, when he hath sinned by mistake before Yahweh, even put a propitiatory-covering over him, and pardon shall be granted him.

Deuteronomy 17:12

And, the man who shall do presumptuously by not hearkening unto the priest that standeth to minister there to Yahweh thy God, or unto the judge, that man shall die, and so shalt thou consume the wicked thing out of Israel.

Daniel 5:22-23

And yet, thou, his son, O Belshazzar! hast not humbled thy heart, though, all this, thou knewest;

Luke 12:47

And, that servant, who had come to know the will of his lord, and neither prepared, nor wrought unto his will, shall be beaten with many stripes;

John 9:41

Jesus said unto them - If, blind, ye had been, ye had not had sin; but, now, ye say, We see, your sin, abideth.

John 13:17

If, these things, ye know, happy, are ye, if ye be doing them.

John 15:22-24

Had I not come and spoken unto them, Sin, had they none; but, now, have they no, excuse, for their sin.

2 Thessalonians 2:10

And with all manner of deceit of unrighteousness, in them who are destroying themselves, because, the love of the truth, they did not welcome, that they might be saved; -

1 Timothy 1:13

Though, formerly, a defamer, and persecutor, and insulter; nevertheless mercy was shown me, because, without knowledge, I acted, in unbelief:

Hebrews 6:4-6

For it is impossible - as to these who have been, once for all, illuminated, who have tasted also of the heavenly free-gift, and have been made, partners, in a Holy Spirit,

Matthew 12:43-45

But, when the impure spirit goeth out of the man, it passeth through waterless places, seeking rest, - and findeth it not.

Psalm 19:12-13

Mistakes, who perceiveth? From things that are hidden, acquit me:

Matthew 12:31-32

Wherefore, I say unto you, All sin and profane speaking, shall be forgiven unto men, - but, the speaking profanely of the Spirit, shall not be forgiven;

James 4:17

To him, therefore, who knoweth how to be doing, a right thing, and is not doing it, it is, sin, unto him.

Treasury of Scripture Knowledge

Summary

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

Bible References

If

Hebrews 6:4
For it is impossible - as to these who have been, once for all, illuminated, who have tasted also of the heavenly free-gift, and have been made, partners, in a Holy Spirit,
Leviticus 4:2
Speak thou unto the sons of Israel, saying - When any person, shall sin by mistake, departing from any of the commandments of Yahweh, as to things which should not be done, and shall do any one of them, -
Numbers 15:28
and the priest shall put a propitiatory-covering over the person who hath made the mistake, when he hath sinned by mistake before Yahweh, even put a propitiatory-covering over him, and pardon shall be granted him.
Deuteronomy 17:12
And, the man who shall do presumptuously by not hearkening unto the priest that standeth to minister there to Yahweh thy God, or unto the judge, that man shall die, and so shalt thou consume the wicked thing out of Israel.
Psalm 19:12
Mistakes, who perceiveth? From things that are hidden, acquit me:
Daniel 5:22
And yet, thou, his son, O Belshazzar! hast not humbled thy heart, though, all this, thou knewest;
Matthew 12:31
Wherefore, I say unto you, All sin and profane speaking, shall be forgiven unto men, - but, the speaking profanely of the Spirit, shall not be forgiven;
John 9:41
Jesus said unto them - If, blind, ye had been, ye had not had sin; but, now, ye say, We see, your sin, abideth.
1 Timothy 1:13
Though, formerly, a defamer, and persecutor, and insulter; nevertheless mercy was shown me, because, without knowledge, I acted, in unbelief:
2 Peter 2:20
For, if, having escaped from the defilements of the world by a personal knowledge of the Lord and Saviour Jesus Christ, but, by the same having again become entangled, they are defeated, the, last, state hath become, for them, worse than, the first;
1 John 5:16
If one should see his brother committing a sin, not unto death, he shall ask, and He will grant unto him life, - for them who are sinning, not unto death. There, is, a sin, unto death: not concerning that, am I saying, that he should make request.

General references

Deuteronomy 18:19
And it shall come to pass, that, the man who will not hearken unto my words which he shall speak in my name, I, myself will require it of him.
Matthew 7:27
And the rain descended, and the streams came, and the winds blew, and dashed against that house, and it fell; and, the fall thereof, was, great.
Matthew 24:21
For there will be then, Great tribulation, such as hath not happened, from the beginning of the world, until the present time, neither in any wise shall happen.
Mark 3:28
Verily, I say unto you - All things shall be forgiven unto the sons of men, - the sins and the profanities wherewithal they shall profane;
Luke 12:10
And, whosoever shall say a word against the Son of Man, it shall be forgiven him; but, unto him who, against the Holy Spirit, speaketh profanely, it shall not be forgiven.