2 Corinthians 10:16

So as to preach the gospel even unto the parts beyond you, and not to glory in another's province in regard of things ready to our hand.

Macknight's paraphrase of this makes the correct application to the false teachers as follows:

So as to preach the gospel in the regions beyond you, where no person hath yet preached, and not in another man's bounds, to take praise to myself on account of things already prepared, that is, of churches already planted, as the false teacher hath done.[16]

This was Paul's affirmation that even after correcting the disorders that still existed among them, he had no intention whatever of settling down there to exploit them, as the false apostles were doing. His mission was still pointed to all the world.