4.15 Romans -- Guides for Conduct
Paul does not give rules of behavior in Romans, but he does give advice. In the remaining chapters, several verses have obvious racial implications:
Do not think of yourself more highly than you ought (Rom 12:3).
Be devoted to one another in brotherly love. Honor one another above yourselves (Rom 12:10).
Live in harmony with one another. Do not be proud, but be willing to associate with people of low position (Rom 12:16).
Love does no harm to its neighbor. Therefore love is the fulfillment of the law (Rom 13:10).
May the God who gives endurance and encouragement give you a spirit of unity among yourselves as you follow Christ Jesus (Rom 15:5).
Accept one another, then, just as Christ accepted you, in order to bring praise to God (Rom 15:7).
I urge you, brothers, to watch out for those who cause divisions and put obstacles in your way that are contrary to the teaching you have learned. Keep away from them (Rom 16:17).
The purpose of these admonitions is to create a unified body out of many parts. And this is in conformity with and fulfilment of God's original plan as proclaimed in the Old Testament. In closing, Paul cites several Old Testament Scriptures which include Gentiles in the promise:
"The Root of Jesse will spring up, one who will arise to rule over the nations;the Gentiles will hope in him" (Rom 15:12).
This is a restatement of Isaiah:
In that day the Root of Jesse will stand as a banner for the peoples; the nations will rally to him, and his place of rest will be glorious (Isa 11:10).