1 Corinthians 9:6-8

Or I only and Barnabas, have not we power to forbear working? Who goeth a warfare any time at his own charges? who planteth a vineyard, and eateth not of the fruit thereof? or who feedeth a flock, and eateth not of the milk of the flock? Say I these things as a man? or saith not the law the same also?