1 Corinthians 9:1-4

Am I not an apostle? am I not free? have I not seen Jesus Christ our Lord? are not ye my work in the Lord?

If I be not an apostle unto others, yet doubtless I am to you: for the seal of mine apostleship are ye in the Lord.

Mine answer to them that do examine me is this,

Have we not power to eat and to drink?