Romans 15:20
yes, making it my aim to preach the Good News, not where Christ was already named, that I might not build on another’s foundation.
World English Bible (Public Domain)
In context
Before · Romans 15:18–19
18For 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, 19in 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;
20yes, making it my aim to preach the Good News, not where Christ was already named, that I might not build on another’s foundation.