New Testament

James 5:13-20

13 Is anyone among you suffering? He should pray. Is anyone in good spirits? He should sing praises. 14 Is anyone among you ill? He should summon the elders of the church, and they should pray for him and anoint him with olive oil in the name of the Lord. 15 And the prayer of faith will save the one who is sick and the Lord will raise him up—and if he has committed sins, he will be forgiven. 16 So confess your sins to one another and pray for one another so that you may be healed. The prayer of a righteous person has great effectiveness. 17 Elijah was a human being like us, and he prayed earnestly that it would not rain and there was no rain on the land for three years and six months! 18 Then he prayed again, and the sky gave rain and the land sprouted with a harvest.

19 My brothers and sisters, if anyone among you wanders from the truth and someone turns him back, 20 he should know that the one who turns a sinner back from his wandering path will save that person’s soul from death and will cover a multitude of sins.

Rabbinic

Pirkei Avot 5:18

Whoever causes the multitudes to be righteous, sin will not occur on his account; And whoever causes the multitudes to sin, they do not give him the ability to repent. Moses was righteous and caused the multitudes to be righteous, [therefore] the righteousness of the multitudes is hung on him, as it is said, “He executed the Lord’s righteousness and His decisions with Israel”. Jeroboam, sinned and caused the multitudes to sin, [therefore] the sin of the multitudes is hung on him, as it is said, “For the sins of Jeroboam which he sinned, and which he caused Israel to sin thereby”