Romans 15:20

Overview - Romans 15
The strong must bear with the weak.
We must not please ourselves;
for Christ did not so;
but receive one another, as Christ did us all;
both Jews and Gentiles;
15 Paul excuses his writing;
28 and promises to see them;
30 and requests their prayers.
Treasury of Scripture Knowledge

Romans 15:20  (King James Version)
Yea, so have I strived to preach the gospel, not where Christ was named, lest I should build upon another man's foundation:

2 Corinthians 10:14-16

1 Corinthians 3:9-15 ; 2 Corinthians 10:13-16 ; Ephesians 2:20-22