The Apostle Paul
Galatians 3:10ESV·traditional attribution

For all who rely on works of the law are under a curse; for it is written, “Cursed be everyone who does not abide by all things written in the Book of the Law, and do them.”

John Calvin Reformed @genevareformer

10. For as many as are of the works of the law. The argument is drawn from the contradictory nature of the two schemes; for the same fountain does not yield both hot and cold. The law holds all living men under its curse; and from the law, therefore, it is in vain to expect a blessing.

Matthew Henry Presbyterian @wholebiblehenry

The apostle having reproved the Galatians for not obeying the truth, and endeavoured to impress them with a sense of their folly herein, in these verses he largely proves the doctrine which he had reproved them for rejecting, namely, that of justification by faith without the works of the law. This he does several ways. I. From the example of Abraham's justification. This argument the apostle uses, Rom. 4.

Commenting on Galatians 3:6-18

John Gill Reformed Baptist @doctorgill

For as many as are of the works of the law,.... The apostle does not say, "as many as were of the law", to whom it belonged, who were born and brought up in it, and to whom it was given, the Jews; for there were some of them who believed in Christ, were blessed with Abraham, and not under the curse of the law...