Let the ministers of churches faithfully give heed to the ministry of the Word and not corrupt the doctrine of salvation, but deliver it purely and sincerely to the people of God. Let them teach not merely by doctrine, but by example. In short, let them act the part of good shepherds toward their flocks. Let the people, in their turn, receive them as the messengers and apostles of God, render them the honor which their supreme Master has bestowed on them, and supply them with such things as are necessary for their livelihood. – John Calvin (1509-1564), Institutes 2.8.46.