for the [resentful, deep-seated] anger of man does not produce the righteousness of God [that standard of behavior which He requires from us].

If anyone thinks himself to be religious [scrupulously observant of the rituals of his faith], and does not control his tongue but deludes his own heart, this person’s religion is worthless (futile, barren).

and one of you says to them, “Go in peace [with my blessing], [keep] warm and feed yourselves,” but he does not give them the necessities for the body, what good does that do?

So too, faith, if it does not have works [to back it up], is by itself dead [inoperative and ineffective].

You see that a man (believer) is justified by works and not by faith alone [that is, by acts of obedience a born-again believer reveals his faith].

For we all stumble and sin in many ways. If anyone does not stumble in what he says [never saying the wrong thing], he is a perfect man [fully developed in character, without serious flaws], able to bridle his whole body and rein in his entire nature [taming his human faults and weaknesses].

Does a spring send out from the same opening both fresh and bitter water?

So any person who knows what is right to do but does not do it, to him it is sin.