Romans 15:18-20

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