1 John 5:16-21

16If any man see his brother sinning a sin not unto death, he shall ask, and God will give him life for them that sin not unto death. There is a sin unto death: not concerning this do I say that he should make request. 17All unrighteousness is sin: and there is a sin not unto death.

18We know that whosoever is begotten of God sinneth not; but he that was begotten of God keepeth himself, and the evil one toucheth him not. 19We know that we are of God, and the whole world lieth in the evil one. 20And we know that the Son of God is come, and hath given us an understanding, that we know him that is true, and we are in him that is true, even in his Son Jesus Christ. This is the true God, and eternal life. 21My little children, guard yourselves from idols.