15. And if (since) we [positively] know that He listens to us in whatever we ask, we also know [with settled and absolute knowledge] that we have [granted us as our present possessions] the requests made of Him.
16. If anyone sees his brother [believer] committing a sin that does not [lead to] death (the extinguishing of life), he will pray and [God] will give him life [yes, He will grant life to all those whose sin is not one leading to death]. There is a sin [that leads] to death; I do not say that one should pray for that.
17. All wrongdoing is sin, and there is sin which does not [involve] death [that may be repented of and forgiven].
18. We know [absolutely] that anyone born of God does not [deliberately and knowingly] practice committing sin, but the One Who was begotten of God carefully watches over and protects him [Christ's divine presence within him preserves him against the evil], and the wicked one does not lay hold (get a grip) on him or touch [him].