(14-17) This Messianic kingdom cannot have anything to do with law; for if it had, faith and the promise would cease to have any office. Faith and law cannot co-exist. They are the opposites of each other. The proper effect of law is punishment; for law only exposes sin. Faith, on the other hand, is the real key to the inheritance. It sets in motion grace; and grace, unlike law, excludes no one. It is open alike to the legal and to the spiritual descendants of Abraham; in other words (as the Scripture itself testifies), to all mankind, as the representative of whom Abraham stands before God.
Related Commentaries of Romans 4:14
Romans 4:14-17
14 For if they which are of the law be heirs, faith is made void, and the promise made of none effect:
15 Because the law worketh wrath: for where no law is, there is no transgression.
16 Therefore it is of faith, that it might be by grace; to the end the promise might be sure to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham; who is the father of us all,
17 (As it is written, I have made thee a father of many nations,) before him whom he believed, even God, who quickeneth the dead, and calleth those things which be not as though they were.