For whatever was written in former days was written for our instruction, so that by steadfastness and by the encouragement of the scriptures we might have hope.
May the God of steadfastness and encouragement grant you to live in harmony with one another, in accordance with Christ Jesus, that together you may with one voice glorify the God and Father of our Lord Jesus Christ.” (Romans 15:4 – 6)

I am assuming that Paul is talking about the Torah (Pentateuch in Greek) and the other writings that would have been used in the Jewish community. It was Paul’s belief (and a good many commentators that I have read) that Jesus the Messiah was predicted by the writings of the major and minor prophets, and the nature of the Messiah as revealed in the stories of the called and chosen people. In that I am not talking about the presumptions that were made about the nature and intentions of the Divine, but what actually transpired between the Lord God and humanity. Read carefully where Paul says “live in harmony with one another”. Many of the actions that were undertaken by the Israelites did not seem to promote harmony. I concede the consideration of that is a larger topic that I am not looking at taking up here. The point I want to emphasis is one voice glorifying the God and [Parent] of our Lord Jesus Christ.

“Welcome one another, therefore, just as Christ has welcomed you, for the glory of God.” (Verse 7)

A refrain that is often heard is “Peace on earth and goodwill to all people” to slightly paraphrase for gender inclusivity. But that is the whole point, beloved reader, to make all people feel welcome! Listen to Paul!

“For I tell you that Christ has become a servant of the circumcised on behalf of the truth of God in order that he might confirm the promises given to the patriarchs, and in order that the Gentiles might glorify God for his mercy. As it is written, “Therefore I will confess you among the Gentiles, and sing praises to your name”;
and again he says, “Rejoice, O Gentiles, with his people”; and again, “Praise the Lord, all you Gentiles, and let all the peoples praise him”; and again Isaiah says, “The root of Jesse shall come, the one who rises to rule the Gentiles; in him the Gentiles shall hope.” (Verses 8 – 12)

One may ask, who are the “circumcised” and who are the “Gentiles”. Paul still has a shade of “them” and “us”. Strictly speaking to Paul, WE are the Gentiles. Because we are not the first people that Yahweh called out. But as believers in Jesus Christ and beneficiaries of the Lord God’s outreach through the Messiah, we are the “circumcised.” And if we are both, beloved reader, how can we deny relationship with others. Either they are already within the family of God, or the Divine is attempting to reach out to them through us! So I say to you, beloved reader, which ever group you may be a part of . . . .

“May the God of hope fill you with all joy and peace in believing, so that you may abound in hope by the power of the Holy Spirit.” (Verse 13)

Selah and Shalom!