For if a man be a hearer of the word and not a doer, he shall be compared to a man beholding his own countenance in a glass. For he beheld himself and went his way and presently forgot what manner of man he was. And if any man think himself to be religious, not bridling his tongue but deceiving his own heart, this man's religion is vain. James Chapter 2 Against respect of persons. The danger of transgressing one point of the law.
Faith is dead without works.
My brethren, have not the faith of our Lord Jesus Christ of glory, with respect of persons. But you have dishonoured the poor man. But if you have respect to persons, you commit sin, being reproved by the law as transgressors. And whosoever shall keep the whole law, but offend in one point, is become guilty of all. For all the precepts of the law are to be considered as one total and entire law, and as it were a chain of precepts, where, by breaking one link of this chain, the whole chain is broken, or the integrity of the law consisting of a collection of precepts.