Priesthood quorum members are taught in more ways than by lessons in a class. The quorum is a service unit, and the members learn in their service. A quorum can give greater service than the members could give alone. And that power is multiplied by more than their numbers. Every quorum has a leader with authority and responsibility to direct priesthood service. I have seen the power that comes when quorums are called to move out to help in times of disaster. Time and again I have had people outside the Church express surprise and admiration for the effectiveness of the Church in organizing to give help. It seems to them like a miracle. In all priesthood service the miracle of power comes because leaders and members honor the authority of those who direct the service in priesthood quorums across the earth.

Henry B. Eyring, "A Priesthood Quorum," Ensign, Nov. 2006, 44