From Collins, Keenan Jones: Jesus Our Priest – A Christian Approach to the Priesthood of Christ

Little official teaching and theological reflection on Christ’s priesthood developed over two thousand years of Christianity. His priesthood was taken for granted and rarely became controversial. Even when controversies emerged, as they did at the Reformation, they focused on those who shared in Christ’s priesthood rather than on his priesthood in itself. The most sustained period of reflection on his priestly office came in the seventeenth century. But, even then, the French School concentrated on the spiritual life of all those who shared in the self-sacrificing priesthood of Christ, whether through baptism or through ministerial ordination.