Romans 15:16-20, 23

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 be proud of my work for God. For I will not venture to speak of anything except what Christ has accomplished through me to bring the Gentiles to obedience—by word and deed, by the power of signs and wonders, by the power of the Spirit of God—so that from Jerusalem and all the way around to Illyricum I have fulfilled the ministry of the gospel of Christ; and thus I make it my ambition to preach the gospel, not where Christ has already been named, lest I build on someone else’s foundation

But now, since I no longer have any room for work in these regions, and since I have longed for many years to come to you