2CO 10:14

14 [when I talk about working among you], I am not boasting [about working in an area where God did not give me the right to work. What those who oppose me say about my not having authority as an apostle to you might be true] if I had not already come all the way to your area. [But that is not true], because I was the one who first brought the message about Christ to you. [I came to Corinth before they did]!