For if they which are of the law be heirs, faith is made void, and the promise made of none effect: For, if they which are of the law be heirs - If the Jews only be heirs of the promise made to Abraham, and that on the ground of prior obedience to the law, then faith is made void - is entirely useless; and the promise, which was made to faith, is made of none effect.
Related Commentaries of Romans 4:14
Romans 4:14
14 For if they which are of the law be heirs, faith is made void, and the promise made of none effect: