1 John 5:16-18 - WEB
16
If anyone sees his brother sinning a sin not leading to death, he shall ask, and God will give him life for those who sin not to death. There is a sin leading to death. I don`t say that concerning this he should make a request.
17
All unrighteousness is sin, and there is a sin not leading to death.
18
We know that whoever is born of God doesn`t sin, but he who was born of God keeps himself, and the evil one doesn`t touch him.
Full Chapter