2 Corinthians 12:12-14

The things that distinguish a true apostle were performed among you with great perseverance—supernatural signs, startling wonders, and awesome miracles. Furthermore, how were you treated worse than the other churches, except that I didn’t burden you financially—forgive me for depriving you! And now here I am, ready to come to you for the third time, and I still refuse to be a burden to you. For what I really want is your hearts, not your money. After all, children should not have to accumulate resources for their parents, but parents do this for their children.