1John.5.16

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.

1John.5.16

For instance, if we see a Christian believer sinning (clearly I'm not talking about those who make a practice of sin in a way that is "fatal," leading to eternal death), we ask for God's help and he gladly gives it, gives life to the sinner whose sin is not fatal. There is such a thing as a fatal sin, and I'm not urging you to pray about that.

1John.5.16

If anyone sees his brother commit a sin that does not lead to death, he should pray and God will give him life. I refer to those whose sin does not lead to death. There is a sin that leads to death. I am not saying that he should pray about that.

1John.5.16

If anyone sees his brother sinning a sin which does not lead to death, he will ask, and He will give him life for those who commit sin not leading to death. There is sin leading to death. I do not say that he should pray about that.