1 John 5:15-16

5:15 And if we know that he hears us in regard to whatever we ask, then we know that we have the requests that we have asked from him. 5:16 If anyone sees his fellow Christian committing a sin not resulting in death, he should ask, and God will grant life to the person who commits a sin not resulting in death. There is a sin resulting in death. I do not say that he should ask about that.