1 John 5:16
If any one see his brother commit a sin which is not unto death, let him pray for him, and God will give him life, that is for them that do not sin unto death. There is a sin unto death: and for that I do not say that he should pray.
Hebrews 6:4-6
who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the holy Spirit,
Matthew 12:31-32
Wherefore, I tell you, All manner of sin and blasphemy shall be forgiven to men; but the blasphemy against the holy Spirit shall not be forgiven them:
Luke 12:10
And whosoever shall speak a word against the Son of man, it may be forgiven him; but unto him, that blasphemeth the holy Spirit, it shall not be forgiven.
Mark 3:28-30
Verily I tell you, that all sins shall be forgiven to the sons of men, and blasphemies wherewith they may blaspheme:
John 17:9
I pray for them: I pray not for the world, but for those whom Thou hast given me, for they are thine.
2 Timothy 4:14
Alexander the brazier did me many ill turns: the Lord will reward him according to his deeds.
Hebrews 10:26-31
For if we sin wilfully after having received the knowledge of the truth, there remaineth no more sacrifice for sins;
James 5:14-15
Is any sick among you? let him call for the elders of the church; and let them pray over him, anointing him with oil in the name of the Lord:
2 Peter 2:20-22
For if, after they had escaped the pollutions of the world, through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled and vanquished by them, their last state is worse than the first;