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";
References for Romans 15:9
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."
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.
I myself feel confident about you, my brothers and sisters, that you yourselves are full of goodness, filled with all knowledge, and able to instruct one another.
References for Romans 15:14
Nevertheless on some points I have written to you rather boldly by way of reminder, because of the grace given me by God
to be a minister of Christ Jesus to the Gentiles in the priestly service of the gospel of God, so that the offering of the Gentiles may be acceptable, sanctified by the Holy Spirit.
In Christ Jesus, then, I have reason to boast of my work for God.
For I will not venture to speak of anything except what Christ has accomplished through me to win obedience from the Gentiles, by word and deed,
References for Romans 15:18