Mark 3:28

I assure you: People will be forgiven for all sins and whatever blasphemies they may blaspheme.

Matthew 12:31-32

Because of this, I tell you, people will be forgiven every sin and blasphemy, but the blasphemy against the Spirit will not be forgiven.

Luke 12:10

Anyone who speaks a word against the Son of Man will be forgiven, but the one who blasphemes against the Holy Spirit will not be forgiven.

1 John 5:16

If anyone sees his brother committing a sin that does not bring death, he should ask, and God will give life to him—to those who commit sin that doesn’t bring death. There is sin that brings death. I am not saying he should pray about that.

Mark 3:28-30

I assure you: People will be forgiven for all sins and whatever blasphemies they may blaspheme.

Hebrews 6:4-8

For it is impossible to renew to repentance those who were once enlightened, who tasted the heavenly gift, became companions with the Holy Spirit,

Hebrews 10:26-31

For if we deliberately sin after receiving the knowledge of the truth, there no longer remains a sacrifice for sins,

Treasury of Scripture Knowledge

Summary

Verily I say unto you, All sins shall be forgiven unto the sons of men, and blasphemies wherewith soever they shall blaspheme:

Bible References

General references

Matthew 12:31
Because of this, I tell you, people will be forgiven every sin and blasphemy, but the blasphemy against the Spirit will not be forgiven.
Luke 12:10
Anyone who speaks a word against the Son of Man will be forgiven, but the one who blasphemes against the Holy Spirit will not be forgiven.
Hebrews 6:4
For it is impossible to renew to repentance those who were once enlightened, who tasted the heavenly gift, became companions with the Holy Spirit,
Hebrews 10:26
For if we deliberately sin after receiving the knowledge of the truth, there no longer remains a sacrifice for sins,
1 John 5:16
If anyone sees his brother committing a sin that does not bring death, he should ask, and God will give life to him—to those who commit sin that doesn’t bring death. There is sin that brings death. I am not saying he should pray about that.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.