Whoso rewardeth evil for good - Here is a most awful warning. As many persons are guilty of the sin of ingratitude, and of paying kindness with unkindness, and good with evil, it is no wonder we find so much wretchedness among men; for God's word cannot fail; evil shall not depart from the houses and families of such persons.

Whoso rewardeth evil for good,.... As the enemies of David and Christ rewarded them, Psalm 35:12; this is base ingratitude, contrary to the law and light of nature; worse than beastly, is really devilish;
evil shall not depart from his house; from him and his family; they shall be continually visited with one disease and calamity or another; so hateful and offensive is the sin of ingratitude to God, and therefore ought to be carefully avoided. This might be illustrated by the judgments of God on the nation of the Jews, for their ingratitude to Christ.

To render evil for good is devilish. He that does so, brings a curse upon his family.

(Compare Psalm 7:4; Psalm 35:12).
evil--injury to another (Proverbs 13:21).

13 He that returneth evil for good,
From his house evil shall not depart.
If ingratitude appertains to the sinful manifestations of ignoble selfishness, how much more sinful still is black ingratitude, which recompenses evil for good! (משׁיב, as 1-Samuel 25:21, syn. גּמל, to requite, Proverbs 3:30; Proverbs 31:12; שׁלּם, to reimburse, Proverbs 20:22). Instead of תמישׁ, the Kerı̂ reads תמוּשׁ; but that this verb, with a middle vowel, may be 'י'ע as well as 'ו'ע, Psalm 55:2 shows.