Romans 15:17-19 NIV

[17] Therefore I glory in Christ Jesus in my service to God. [18] I will not venture to speak of anything except what Christ has accomplished through me in leading the Gentiles to obey God by what I have said and done— [19] by the power of signs and wonders, through the power of the Spirit of God. So from Jerusalem all the way around to Illyricum, I have fully proclaimed the gospel of Christ.