For as many as are of the works of the law are under the curse: for it is written, Cursed is every one that continues not in all things which are written in the book of the law to do them.
All Commentaries on Galatians 3:10 Go To Galatians 3
Jerome
AD 420
We perceive that the apostle, as elsewhere, has written down the sense of the passage rather than the words. We consider it uncertain whether the seventy interpreters [of the Septuagint] have added “everyone” and “in all” or whether it was in the old Hebrew and deleted by the Jews. What makes me suspect this is that the apostle, a man skilled in Hebrew learning, would never have added these words everyone and all as if they were necessary to his meaning in the proof that all who perform the works of the law are accursed, unless they were in the Hebrew copies. Therefore, reading over the Hebrew copies of the Samaritans, I found the word kol written, which means “all” or “in all” and concurs with the Seventy.