1 Corinthians 9:4

Have we not power to eat and to drink? - Have we not authority, or right, εξουσιαν , to expect sustenance, while we are labouring for your salvation? Meat and drink, the necessaries, not the superfluities, of life, were what those primitive messengers of Christ required; it was just that they who labored in the Gospel should live by the Gospel; they did not wish to make a fortune, or accumulate wealth; a living was all they desired. It was probably in reference to the same moderate and reasonable desire that the provision made for the clergy in this country was called a living; and their work for which they got this living was called the cure of souls. Whether we derive the word cure from cura , care, as signifying that the care of all the souls in a particular parish or place devolves on the minister, who is to instruct them in the things of salvation, and lead them to heaven; or whether we consider the term as implying that the souls in that district are in a state of spiritual disease, and the minister is a spiritual physician, to whom the cure of these souls is intrusted; still we must consider that such a laborer is worthy of his hire; and he that preaches the Gospel should live by the Gospel.