for the anger of man does not produce the righteousness of God.
In this part of the chapter we are required, I. To restrain the workings of passion. This lesson we should learn under afflictions; and this we shall learn if we are indeed begotten again by the word of truth. For thus the connection stands - An angry and hasty spirit is soon provoked to ill things by afflictions, and errors and ill opinions become prevalent...
Commenting on James 1:19-27
For the wrath of man worketh not the righteousness of God. This is so far from engaging persons to do that which is right and acceptable in the sight of God, that it puts them upon doing that which is evil.
Verse 20. For the wrath of man worketh not the righteousness of God. Does not produce in the life that righteousness which God requires. Its tendency is not to incline us to keep the law, but to break it; not to induce us to embrace the truth, but the opposite.