Tiago 4:11

Speak not evil one of another, brethren. He that speaketh evil of his brother, and judgeth his brother, speaketh evil of the law, and judgeth the law: but if thou judge the law, thou art not a doer of the law, but a judge.

Speak not evil one of another — This is a grand hinderance of peace. O who is sufficiently aware of it! He that speaketh evil of another does in effect speak evil of the law, which so strongly prohibits it.

Thou art not a doer of the law, but a judge — Of it; thou settest thyself above, and as it were condemnest, it.