James 2:10

The best manuscripts read, "Whosoever shall have kept the whole law, and yet shall have offended (literally, 'stumbled'; not so strong as 'fall,' Rom 11:11) in one (point; here, the respecting of persons), is (hereby) become guilty of all." The law is one seamless garment which is rent if you but rend a part; or a musical harmony which is spoiled if there be one discordant note [TIRINUS]; or a golden chain whose completeness is broken if you break one link [GATAKER]. You thus break the whole law, though not the whole of the law, because you offend against love, which is the fulfilling of the law. If any part of a man be leprous, the whole man is judged to be a leper. God requires perfect, not partial, obedience. We are not to choose out parts of the law to keep, which suit our whim, while we neglect others.

In this chapter the apostle condemns a sinful regarding of the rich, and despising the poor, which he imputes to partiality and injustice, and shows it to be an acting contrary to God, who has chosen the poor, and whose interest is often persecuted, and his name blasphemed, by the rich (Jam 2:1-7). He shows that the whole law is to be fulfilled, and that mercy should be followed, as well as justice (Jam 2:8-13). He exposes the error and folly of those who boast of faith without works, telling us that this is but a dead faith, and such a faith as devils have, not the faith of Abraham, or of Rahab (Jam 2:11 to the end).