NET

11 Do not speak against one another, brothers and sisters. He who speaks against a fellow believer or judges a fellow believer speaks against the law and judges the law. But if you judge the law, you are not a doer of the law but its judge.

Darby

11 Speak not against one another, brethren. He that speaks against [his] brother, or judges his brother, speaks against [the] law and judges [the] law. But if thou judgest [the] law, thou art not doer of [the] law, but judge.

KJV

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.