Hebrews 10:26

For if we sin deliberately, after receiving the knowledge of the Truth, there is no longer any sacrifice for sins left,

2 Peter 2:20-22

After escaping the pollutions of the world by the knowledge of our Lord and saviour Jesus Christ, if they get entangled and overpowered again, the last state is worse for them than the first.

1 John 5:16

If anyone notices his brother committing a sin which is not deadly, he will ask and obtain life for him ??for anyone who does not commit a deadly sin. There is such a thing as deadly sin; I do not mean he is to pray for that.

Luke 12:47

The servant who knew his lord and master's orders and did not prepare for them, will receive many lashes;

John 9:41

Jesus replied, "If you were blind, you would not be guilty; but, as it is, you claim to have sight ??and so your sin remains."

John 13:17

If you know all this, blessed are you if you really do it.

John 15:22-24

They would not be guilty, if I had not come and spoken to them; but, as it is, they have no excuse for their sin ??23 he who hates me hates my Father also.

2 Thessalonians 2:10

and with the full deceitfulness of evil for those who are doomed to perish, since they refuse to love the Truth that would save them.

1 Timothy 1:13

though I had formerly been a blasphemer and a persecutor and a wanton aggressor. I obtained mercy because in my unbelief I had acted out of ignorance;

Hebrews 6:4-6

For in the case of people who have been once enlightened, who tasted the heavenly Gift, who participated in the holy Spirit,

Matthew 12:43-45

When an unclean spirit leaves a man, it roams through dry places in search of refreshment and finds none.

Matthew 12:31-32

I tell you therefore, men will be forgiven any sin and blasphemy, but they will not be forgiven for blaspheming the Spirit.

James 4:17

[follows 2:26] Whoever, then, knows what is right to do and does not do it, that is a sin for 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 in the case of people who have been once enlightened, who tasted the heavenly Gift, who participated in the holy Spirit,
Matthew 12:31
I tell you therefore, men will be forgiven any sin and blasphemy, but they will not be forgiven for blaspheming the Spirit.
John 9:41
Jesus replied, "If you were blind, you would not be guilty; but, as it is, you claim to have sight ??and so your sin remains."
1 Timothy 1:13
though I had formerly been a blasphemer and a persecutor and a wanton aggressor. I obtained mercy because in my unbelief I had acted out of ignorance;
2 Peter 2:20
After escaping the pollutions of the world by the knowledge of our Lord and saviour Jesus Christ, if they get entangled and overpowered again, the last state is worse for them than the first.
1 John 5:16
If anyone notices his brother committing a sin which is not deadly, he will ask and obtain life for him ??for anyone who does not commit a deadly sin. There is such a thing as deadly sin; I do not mean he is to pray for that.

General references

Matthew 7:27
The rain came down, the floods rose, the winds blew and beat upon that house, and down it fell ??with a mighty crash."
Matthew 24:21
for there will be sore misery then, such as never has been from the beginning of the world till now ??no and never shall be.
Mark 3:28
I tell you truly, the sons of men shall be forgiven all their sins, and all the blasphemies they may utter,
Luke 12:10
Everyone also who says a word against the Son of man will be forgiven for it, but he who blasphemes against the holy Spirit will never be forgiven.