NET
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.”
Darby
21 And if thou warn the righteous [man], that the righteous sin not, and he doth not sin, he shall certainly live, for he hath taken warning; and thou hast delivered thy soul.
KJV
21 Nevertheless if thou warn the righteous [man], that the righteous sin not, and he doth not sin, he shall surely live, because he is warned; also thou hast delivered thy soul.