Romans 15:18 in the World English Bible
For I will not dare to speak of any things except those which Christ worked through me for the obedience of the Gentiles, by word and deed,
Context
17 I have therefore whereof I may glory through Jesus Christ in those things which pertain to God.
18 For I will not dare to speak of any of those things which Christ hath not wrought by me, to make the Gentiles obedient, by word and deed,
19 Through mighty signs and wonders, by the power of the Spirit of God; so that from Jerusalem, and round about unto Illyricum, I have fully preached the gospel of Christ.