Ezekiel 3:18
16 At the end of seven days the Lord’s message came to me: 17 “Son of man, I have appointed you a watchman for the house of Israel. Whenever you hear a word from my mouth, you must give them a warning from me. 18 When I say to the wicked, ‘You will certainly die,’ and you do not warn him—you do not speak out to warn the wicked to turn from his wicked lifestyle so that he may live—that wicked person will die for his iniquity, but I will hold you accountable for his death. 19 But as for you, if you warn the wicked and he does not turn from his wicked deed and from his wicked lifestyle, he will die for his iniquity but you will have saved your own life. 20 “When a righteous person turns from his righteousness and commits iniquity, and I set an obstacle before him, he will die. If you have not warned him, he will die for his sin. The righteous deeds he performed will not be considered, but I will hold you accountable for his death. 21 However, if you warn the righteous person not to sin, and he does not sin, he will certainly live because he was warned, and you will have saved your own life.”
James 5:20
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.
Notes and References
"... Since it makes no sense to think James thought believers would never die physically, since it seems unlikely that he is referring in 5:19-20 simply to being healed and saved from physical death, and since life and death in an ultimate sense were the options (Didache 1), it is probable that James sees "save the sinner's soul from death" as referring to eternal death. The Greek text does not say "the sinner's soul" but "his life" (psychen autou) and one can conceivably think the "his" is the restorer: that is, by his action of caring for the wanderer the restorer saves his own soul. In fact, there is evidence to support this suggestion, even if it goes against Reformation instincts — something we have seen James do already. God tells Ezekiel that if he does not warn the wicked, both they and he will die; if he warns the wicked, they will not repent but he will save himself (3:16-21; cf. 33:9). Daniel 4:27 can speak of atoning for sins with deeds of righteousness, and 12:3 can say those who lead many to righteousness will be like the stars. Tobit 4:10 and 12:9 say almsgiving saves one from death (see Sir 3:30). In fact, Tobit 12:9-10 is so similar to James 5:20 that many think they have to be read together: 'For almsgiving saves from death and purges away every sin. Those who give alms will enjoy a full life, but those who commit sin and do wrong are their own worst enemies.' Sirach 3:3 finds atonement in honoring one's father ... Didache 4:6 approaches the same issue ..."
McKnight, Scot The Letter of James (pp. 457-459) William B. Eerdmans Publishing Company, 2011