By the deeds of the law— The deeds or works of the law here mentioned appear to be those in which both Jews and Gentiles were defective; and with regard to which every mouth was stopped, or on account of which no part of mankind could plead a right or worthiness to be admitted into the kingdom of God. Some render the last clause, The law takes cognizance of sin. See Locke, Vitringa, and Bishop Bull's Harmonia.
Related Commentaries of Romans 3:20
Romans 3:20
20 Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin.