“Now I say that Jesus Christ was a minister of the circumcision for the truth of God, to confirm the promises made unto the fathers:”
King James Version (KJV)
15:8 Now I say - The apostle here shows how Christ received us. Christ Jesus - Jesus is the name, Christ the surname. The latter was first known to the Jews; the former, to the gentiles. Therefore he is styled Jesus Christ, when the words stand in the common, natural order. When the order is inverted, as here, the office of Christ is more solemnly considered. Was a servant - Of his Father. Of the circumcision - For the salvation of the circumcised, the Jews. For the truth of God - To manifest the truth and fidelity of God.
Ro 15:8 Now I say. Rather, "For I say". The work of Christ is given to show the spirit we ought to have. A minister of the circumcision. Christ became a minister of the circumcision; that is, a Jew, of the seed of Abraham. For the truth of God. The Scriptures had declared that he would be of the seed of Abraham. To confirm the promises. Had he not been of the circumcision, the promises would not have applied to him.