'Committing' in the Bible

If anyone sees his brother committing a sin that does not bring death, he should ask, and God will give life to him—to those who commit sin that doesn’t bring death. There is sin that brings death. I am not saying he should pray about that.

We know [with confidence] that anyone born of God does not habitually sin; but He (Jesus) who was born of God [carefully] keeps and protects him, and the evil one does not touch him.