1 Corinthians 9:6-8

Or do only Barnabas and I not have a right to refrain from working? Who at any time serves as a soldier at his own expense? Who plants a vineyard and does not eat the fruit of it? Or who tends a flock and does not use the milk of the flock? I am not speaking these things according to human judgment, am I? Or does not the Law also say these things?