2 Corinthians 10:15-19

not boasting beyond our measure, that is, in other people’s labors, but with the hope that as your faith grows, we will be, within our domain, enlarged even more by you,

so as to preach the gospel even to the regions beyond you, and not to boast in what has been accomplished in the domain of another.

But the one who boasts is to boast in the Lord.

For it is not the one who commends himself that is approved, but the one whom the Lord commends.