Hebrews 10:26

For, if we sin wilfully after we received the full knowledge of the truth, there no longer remains a sacrifice for sins,

2 Peter 2:20-22

For if, after having escaped the defilements of the world in a full knowledge of our Lord and Savior Jesus Christ, but, having again become entangled with these, they are overcome, the last state has become worse with them than the first.

1 John 5:16

If anyone sees his brother sinning a sin not to death, he shall ask, and God will give him life for those that sin not to death. There is a sin to death: I do not say that he shall make request concerning this.

Luke 12:47

And that servant who knew his lord's will, and made not ready, nor did according to his will, shall be beaten with many stripes;

John 9:41

Jesus said to them, "If ye were blind, ye would have no sin; but now ye say, 'We see,' your sin abides."

John 13:17

If ye know these things, happy are ye, if ye do them.

John 15:22-24

"Had I not come and spoken to them, they had not had sin; but now they have no excuse for their sin.

2 Thessalonians 2:10

and in all deceit of unrighteousness to those who perish; because they received not the love of the truth, that they might be saved.

1 Timothy 1:13

though formerly I was a blasphemer, and a persecutor, and injurious; but I obtained mercy, because I, being ignorant, did it in unbelief;

Hebrews 6:4-6

For as to those who were once enlightened, and tasted of the heavenly gift, and became partakers of the Holy Spirit,

Matthew 12:43-45

"But, when the unclean spirit goes out from the man, it passes through waterless places, seeking rest, and finds it not.

Matthew 12:31-32

Therefore, I say to you, every sin and blasphemy will be forgiven to men, but the blasphemy against the Holy Spirit shall not be forgiven.

James 4:17

To him, therefore, who knows to do good, and does it not, to him it is sin.

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 as to those who were once enlightened, and tasted of the heavenly gift, and became partakers of the Holy Spirit,
Matthew 12:31
Therefore, I say to you, every sin and blasphemy will be forgiven to men, but the blasphemy against the Holy Spirit shall not be forgiven.
John 9:41
Jesus said to them, "If ye were blind, ye would have no sin; but now ye say, 'We see,' your sin abides."
1 Timothy 1:13
though formerly I was a blasphemer, and a persecutor, and injurious; but I obtained mercy, because I, being ignorant, did it in unbelief;
2 Peter 2:20
For if, after having escaped the defilements of the world in a full knowledge of our Lord and Savior Jesus Christ, but, having again become entangled with these, they are overcome, the last state has become worse with them than the first.
1 John 5:16
If anyone sees his brother sinning a sin not to death, he shall ask, and God will give him life for those that sin not to death. There is a sin to death: I do not say that he shall make request concerning this.

General references

Matthew 7:27
and the rain descended, and the streams came, and the winds blew and beat upon that house; and it fell; and great was its fall."
Matthew 24:21
for then will be great tribulation, such as has not happened from the beginning of the world until now; no, nor ever shall be.
Mark 3:28
Verily I say to you, all the sins will be forgiven the sons of men, and the blasphemies whatsoever they blaspheme;
Luke 12:10
And every one who shall say a word against the Son of Man, it shall be forgiven him; but to him who blasphemes against the Holy Spirit, it shall not be forgiven.