16 If anyone should see his brother sinning a sin not leading to death, let him ask, and He will give him life for those who do not sin unto death. There is sin leading to death; I am not saying that he should make request about that.
1 John 5:16 Cross References - WPNT
Matthew 12:31-32
31 Therefore I say to you, every sin and blasphemy will be forgiven people, but the blasphemy against the Spirit will not be forgiven people.
32 And whoever speaks a word against the Son of the Man, it will be forgiven him; but whoever speaks against the Holy Spirit, it will not be forgiven him, neither in the present age nor in the next.
Mark 3:28-30
Luke 12:10
10 Anyone who speaks a word against the Son of Man, it can be forgiven him; but to him who blasphemes against the Holy Spirit it will not be forgiven.
John 17:9
9 I am praying for them; I am not praying for the world but for those whom You have given me, because they are yours.
2 Timothy 4:14
14 Alexander the coppersmith did me a lot of harm; may the Lord repay him according to his deeds.
Hebrews 6:4-6
4 Because, it is impossible to bring back into repentance those who were once for all enlightened, who have partaken of the heavenly gift and were made sharers in the Holy Spirit,
5 who have experienced God’s good event and capabilities of the coming age,
6 and yet have fallen away—they would be crucifying the Son of God all over again, just for themselves, holding Him up to contempt.
Hebrews 10:26-31
26 Because, if we deliberately keep on sinning after having received the real knowledge of the Truth, there no longer remains a sacrifice for sins,
27 just a certain fearful anticipation of judgment and fierce fire that is ready to consume the hostiles.
28 Anyone who rejected Moses’ law died without mercy on the testimony of two or three witnesses.
29 Of how much worse punishment, do you suppose, will he be deemed worthy who has trampled the Son of God under foot, who has regarded as unholy the blood of the covenant by which he was sanctified, and who has insulted the Spirit of grace?
30 For we know Him who said, “‘Vengeance is up to me’, says the Lord, ‘I will repay’.” And again, “The LORD will judge His people.”
31 It is a dreadful thing to fall into the hands of the Living God!
James 5:14-15
2 Peter 2:20-22
20 For if, after they have escaped the defilements of the world through the real knowledge of the Lord and Savior Jesus Christ, they are again entangled in them and overcome, the latter circumstances have become worse for them than the first ones.
21 For it would have been better for them not to have really known the way of the righteousness, than having really known it to turn back from the holy commandment delivered to them.
22 But it has happened to them according to the true proverb: a dog returns to its own vomit and a bathed sow to wallowing in mud.