The Apostle Paul
Romans 4:14BSB·traditional attribution

For if those who live by the law are heirs, faith is useless and the promise is worthless,

John Calvin Reformed @genevareformer

14. For if they who are of the law, etc. He takes his argument from what is impossible or absurd, that the favor which Abraham obtained from God, was not promised to him through any legal agreement, or through any regard to works; for if this condition had been interposed — that God would favor those only with adoption who deserved, or who performed the...

Matthew Henry Presbyterian @wholebiblehenry

St. Paul observes in this paragraph when and why Abraham was thus justified; for he has several things to remark upon that. It was before he was circumcised, and before the giving of the law; and there was a reason for both. I. It was before he was circumcised, Rom 4:10. His faith was counted to him for righteousness while he was in uncircumcision.

Commenting on Romans 4:9-16

John Gill Reformed Baptist @doctorgill

Because the law worketh wrath,.... Not the wrath of man, though that is sometimes stirred up through the prohibitions of the law, to which the carnal mind of man is enmity, but the wrath of God the law is so far from justifying sinners, that it curses and condemns them; and when it comes into the heart and is let into the conscience of a...