1 Corinthians 9:6 Meaning

4Have we not power to eat and to drink?

5Have we not power to lead about a sister, a wife, as well as other apostles, and as the brethren of the Lord, and Cephas?

6Or I only and Barnabas, have not we power to forbear working?

7Who 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?

8Say I these things as a man? or saith not the law the same also?