Do they not err that devise evil? but mercy and truth shall be to them that devise good.

Jamieson-Fausset-Brown Bible Commentary

22. As usual, the interrogative negative strengthens the affirmative.

mercy and truth-that is, God's (Ps 57:3; 61:7).

Matthew Henry's Concise Commentary

14:18. Sin is the shame of sinners; but wisdom is the honour of the wise. 19. Even bad men acknowledge the excellency of God's people. 20. Friendship in the world is governed by self-interest. It is good to have God our Friend; he will not desert us. 21. To despise a man for his employment or appearance is a sin. 22. How wisely those consult their own interest, who not only do good, but devise it! 23. Labour of the head, or of the hand, will turn to some good account. But if men's religion runs all out in talk and noise, they will come to nothing. 24. The riches of men of wisdom and piety enlarge their usefulness. 25. An upright man will venture the displeasure of the greatest, to bring truth to light. 26,27. Those who fear the Lord so as to obey and serve him, have a strong ground of confidence, and will be preserved. Let us seek to this Fountain of life, that we may escape the snares of death. 28. Let all that wish well to the kingdom of Christ, do what they can, that many may be added to his church. 29. A mild, patient man is one that learns of Christ, who is Wisdom itself. Unbridled passion is folly made known. 30. An upright, contented, and benevolent mind, tends to health. 31. To oppress the poor is to reproach our Creator. 32. The wicked man has his soul forced from him; he dies in his sins, under the guilt and power of them. But godly men, though they have pain and some dread of death, have the blessed hope, which God, who cannot lie, has given them. 33. Wisdom possesses the heart, and thus regulates the affections and tempers. 34. Piety and holiness always promote industry, sobriety, and honesty. 35. The great King who reigns over heaven and earth, will reward faithful servants who honour his gospel by the proper discharge of the duties of their stations: he despises not the services of the lowest.

Matthew Henry's Whole Bible Commentary

Verse 22

See here, 1. How miserably mistaken those are that not only do evil, but devise it: Do they not err? Yes, certainly they do; every one knows it. They think that by sinning with craft and contrivance, and carrying on their intrigues with more plot and artifice than others, they shall make a better hand of their sins than others do, and come off better. But they are mistaken. God's justice cannot be out-witted. Those that devise evil against their neighbours greatly err, for it will certainly turn upon themselves and end in their own ruin, a fatal error! 2. How wisely those consult their own interest that not only do good but devise it: Mercy and truth shall be to them, not a reward of debt (they will own that they merit nothing), but a reward of mercy, mere mercy, mercy according to the promise, mercy and truth, to which God is pleased to make himself a debtor. Those that are so liberal as to devise liberal things, that seek opportunities of doing good, and contrive how to make their charity most extensive and most acceptable to those that need it, by liberal things they shall stand, Isa. 32:8.