2 Corinthians 11:7-9

11:7 Or did I commit a sin by humbling myself so that you could be exalted, because I proclaimed the gospel of God to you free of charge? 11:8 I robbed other churches by receiving support from them so that I could serve you! 11:9 When I was with you and was in need, I was not a burden to anyone, for the brothers who came from Macedonia fully supplied my needs. I kept myself from being a burden to you in any way, and will continue to do so.