Verse 20. - They also that render evil for good are mine adversaries (comp. Psalm 35:12). Because I follow the thing that good is; literally, because I follow good.

38:12-22 Wicked men hate goodness, even when they benefit by it. David, in the complaints he makes of his enemies, seems to refer to Christ. But our enemies do us real mischief only when they drive us from God and our duty. The true believer's trouble will be made useful; he will learn to wait for his God, and will not seek relief from the world or himself. The less we notice the unkindness and injuries that are done us, the more we consult the quiet of our own minds. David's troubles were the chastisement and the consequence of his transgressions, whilst Christ suffered for our sins and ours only. What right can a sinner have to yield to impatience or anger, when mercifully corrected for his sins? David was very sensible of the present workings of corruption in him. Good men, by setting their sorrow continually before them, have been ready to fall; but by setting God always before them, they have kept their standing. If we are truly penitent for sin, that will make us patient under affliction. Nothing goes nearer to the heart of a believer when in affliction, than to be under the apprehension of God's deserting him; nor does any thing come more feelingly from his heart than this prayer, Be not far from me. The Lord will hasten to help those who trust in him as their salvation.They also that render evil for good are mine adversaries,.... See Gill on Psalm 35:12;

because I follow the thing that good is; or "follow good"; a good God, whom his soul followed hard after, Psalm 63:8; the good Shepherd of the sheep, who led him into green pastures, whither he followed him, Psalm 23:1; the good Spirit of God his guide, whom he walked after, Romans 8:1; good and holy men of God, whom he took for examples and copied after; and every good work, which he pursued with eagerness and pleasure; and all this drew upon him the hatred of his adversaries.