2 Corinthians 12:12-14

I persevered in demonstrating among you the marks of a true apostle, including signs, wonders and miracles. How were you inferior to the other churches, except that I was never a burden to you? Forgive me this wrong! Now I am ready to visit you for the third time, and I will not be a burden to you, because what I want is not your possessions but you. After all, children should not have to save up for their parents, but parents for their children.