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.

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 12:31-32

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

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.

Mark 3:28-30

I tell you truly, the sons of men shall be forgiven all their sins, and all the blasphemies they may utter,

John 17:9

I pray for them ??not for the world but for those whom thou hast given me do I pray; for they are thine

2 Timothy 4:14

Alexander the blacksmith has done me a lot of harm: the Lord will pay him back for what he has done (beware of him),

Hebrews 10:26-31

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

James 5:14-15

Is anyone ill? let him summon the presbyters of the church, and let them pray over him, anointing him with oil in the name of the Lord;

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.

Treasury of Scripture Knowledge

Summary

If any man see his brother sin a sin which is not unto death, he shall ask, and he shall give him life for them that sin not unto death. There is a sin unto death: I do not say that he shall pray for it.

He shall ask

I do not

General references

Bible References

He shall ask

James 5:14
Is anyone ill? let him summon the presbyters of the church, and let them pray over him, anointing him with oil in the name of the Lord;

There

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.
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.
2 Timothy 4:14
Alexander the blacksmith has done me a lot of harm: the Lord will pay him back for what he has done (beware of him),
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,
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
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.

I do not

John 17:9
I pray for them ??not for the world but for those whom thou hast given me do I pray; for they are thine

General references

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.
Jude 1:22
Snatch some from the fire, and have mercy on the waverers,