Romans 15:20

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 ,

It has always been my ambition to preach the gospel where Christ was not known, so that I would not be building on someone else`s foundation.

Yea, so have I strived to preach the gospel, not where Christ was named, lest I should build upon another man's foundation :