Charles Spurgeon Commentary Galatians 3:9-11

"So then they that are of faith are blessed with the faithful Abraham. For as many as are of the works of the law are under a curse: for it is written, Cursed is every one who continueth not in all things that are written in the book of the law, to do them. Now that no man is justified by the law before God, is evident: for, The righteous shall live by faith;" — Galatians 3:9-11 (ASV)

So then they who are faith are blessed with faithful Abraham.

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. But that no man is justified by the law in the sight of God, it is evident: for, The just shall live by faith.

If then, even those who are just live by faith, how can any expect that they will live by their works?