a) The apostle Paul was a Jew, writing to converts from among the Gentiles; yet he classes himself with them. “Christ hath redeemed us from the curse of the law.” (Gal.3:13)
b) Christ was made a curse for us, “that the blessing of Abraham might come on the Gentiles through Jesus Christ.” (Gal. 3:14) Here again the apostle shows that there is no difference between Jew and Gentile. His being made a curse for us, brings the blessing on the Gentiles.
c) Again is the same thing shown by the further statement that this occurred “that we might receive the promise of the Spirit through faith.” (Gal. 3:14)
By one Spirit do all men, of whatever race, have access to the Father. Eph. 2:18.
d) The blessing of Abraham comes only through the cross of Christ. It was the blessing of sins forgiven,--the gift of the perfect righteousness of God; and this comes only through Christ. Therefore Abraham's faith was in Christ and His cross."
Sabbath School Lesson 1900