John Gills Exposition of the Bible Commentary - Proverbs 21:18
The wicked shall be a ransom for the righteous ,.... Not to make satisfaction for them, as Christ is a ransom for his people; but as a ransom is in the room of another, so the wicked cometh in the stead of the righteous, and into the trouble he is delivered from; as Haman for Mordecai, which instance Jarchi mentions; see Proverbs 11:8 ; or when a body of people are threatened with divine vengeance; and this falls upon the wicked, whose sins caused it, and the righteous are delivered from... read more
Matthew Henry's Complete Commentary - Proverbs 21:18
This intimates, 1. What should be done by the justice of men: The wicked, that are the troublers of a land, ought to be punished, for the preventing and turning away of those national judgments which otherwise will be inflicted and in which even the righteous are many times involved. Thus when Achan was stoned he was a ransom for the camp of righteous Israel; and the seven sons of Saul, when they were hanged, were a ransom for the kingdom of righteous David. 2. What is often done by the... read more