That the blessing of Abraham - That is, justification or the pardon of sin, with all other blessings consequent on it, such as peace with God, spiritual life, and eternal glory.
Might come on the Gentiles through Jesus Christ - So we find that he was made a curse for us, that the blessings promised to Abraham might be given to them who believe on him, as having been made a curse; i.e. an expiatory victim for them.
The promise of the Spirit - The spirit of adoption, sonship with God; and the Spirit of God to attest that sonship. And all this was through faith. Hence, from the beginning God had purposed that salvation should be through faith, and never expected that any soul of man should be justified by the works of the law; and only gave that law that the exceeding sinfulness of sin might appear, and that man might be prepared to welcome the Gospel, which proclaimed salvation to a lost world through the atoning passion and death of Christ.
That the blessing of Abraham - The blessing which Abraham enjoyed, to wit, that of being justified by faith. “Might come on the Gentiles.” As well as on the Jews. Abraham was blessed in this manner before he was circumcised Romans 4:11, and the same blessing might be imparted to others also who were not circumcised; see this argument illustrated in the notes at Romans 4:10-12.
Through Jesus Christ - Since he has been made a curse for all, and since he had no exclusive reference to the Jews or to any other class of people, all may come and partake alike of the benefits of his salvation.
That we might receive the promise of the Spirit - That all we who are Christian converts. The promise of the Spirit, or the promised Spirit, is here put for all the blessings connected with the Christian religion. It includes evidently the miraculous agency of the Holy Spirit; and all his influences in renewing the heart, in sanctifying the soul, and in comforting the people of God. These influences had been obtained in virtue of the sufferings and death of the Lord Jesus in the place of sinners, and these influences were the sum of all the blessings promised by the prophets.