Romans 15:16-20, 23

to be a minister of Christ Jesus to the Gentiles, ministering as a priest the gospel of God, so that my offering of the Gentiles may become acceptable, sanctified by the Holy Spirit. Therefore in Christ Jesus I have found reason for boasting in things pertaining to God. For I will not presume to speak of anything except what Christ has accomplished through me, resulting in the obedience of the Gentiles by word and deed, in the power of signs and wonders, in the power of the Spirit; so that from Jerusalem and round about as far as Illyricum I have fully preached the gospel of Christ. And thus I aspired to preach the gospel, not where Christ was already named, so that I would not build on another man’s foundation

but now, with no further place for me in these regions, and since I have had for many years a longing to come to you