Christ became a servant to the Jews in order to bring the gospel to the Gentiles. When Jesus Christ came into this world as a Jew, God had only the Jews in mind. List the three divisions of the Old Testament from which these four quotations came. God had in mind both Jews and Gentiles. Although the Jews are temporarily set aside, the promises to Abraham, Isaac and Jacob are confirmed in Christ.
Gentiles comprise the common theme.
The point of these verses is to show the Jewish Christians that bringing in the Gentiles was from the beginning. The law, prophets and psalms 5. There were tensions in the early first century church in Rome. There are tensions today when people of different cultural and ethnic backgrounds mix. Start or continue a regular program of memorization for yourself.