Romans 3:19 : Now we know that what things soever the law saith, it speaketh to them that are under the law: that every mouth may be stopped, and all the world may be brought under the judgment of God. Here the entire Old Testament is referred to as the law, for Paul had been quoting from various parts of the Old Testament. What he had quoted were, therefore, words directed to the Jews--they were guilty of the crimes mentioned in the quotations. "That every mouth may be stopped." That all might so feel their guilt as to be unable to answer back or make any defense. The Jews could not deny what their own inspired prophets had said. "And all the world may be brought under the judgment of God." The Jew readily granted that the Gentile was under the judgment of God, and now Paul proves from the Jew-ish Scriptures that the Jew was likewise under the judgment of God.