I have a duty to both the Greek and the Barbarian, to both the cultured and the ignorant.

Surely you know that, when you offer yourselves as servants, to obey any one, you are the servants of the person whom you obey, whether the service be that of Sin which leads to Death, or that of Duty which leads to Righteousness.

Yes, they were glad to do so; and indeed it is a duty which they owe to them. For the Gentile converts who have shared their spiritual blessings are in duty bound to minister to them in the things of this world.