Romans 15:18 in the King James Version
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,
Context
17 I have therefore my boasting in Christ Jesus in things pertaining to God.
18 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,
19 in the power of signs and wonders, in the power of God’s Spirit; so that from Jerusalem and around as far as to Illyricum, I have fully preached the Good News of Christ;