2 Corinthians 11:7, 9

Have I committed an offence in abasing myself that ye might be exalted, because I have preached to you the gospel of God freely?

And when I was present with you, and wanted, I was chargeable to no man: for that which was lacking to me the brethren which came from Macedonia supplied: and in all things I have kept myself from being burdensome unto you, and so will I keep myself.