So speak ye, and so do. — The writer has shown how unsuspected sins lead quickly to a violation of the Law, and in concluding this part of his Epistle he returns to the warning against an unguarded tongue, with which he commenced in chap 1:26.
The law of liberty. — The term is only found here and in James 1:25, and seems one of which James the Wise was peculiarly fond. What, however, did he precisely mean? Neither the ceremonial, nor the moral, most certainly; but the spiritual law of One greater than Moses. The idea, however, is in most of the New Testament writings, and particularly St. Paul’s. (Comp. John 8:32; Romans 8:21; 1 Corinthians 10:29; 2 Corinthians 3:17; Galatians 2:4; Galatians 5:1; Galatians 5:13; and 1 Peter 2:16.)