[1] Robert S. Franks, A History of the Doctrine of the Work of Christ in Its Ecclesiastical Development, vol. 1 (New York: Hodder and Stoughton, n.d.), 139.

[2] Roman Catholic Church, The Catechism of the Council of Trent, trans. Theodore Alois Buckley (London: George Routledge and Co., 1852), 138.

[3] Ibid., 139.

[4] D. P. Kidder, “Sacrament,” Cyclopædia of Biblical, Theological, and Ecclesiastical Literature (New York: Harper & Brothers, Publishers, 1880), 213.

[5] B. B. Warfield, The Theology of the Reformation, 462.

[6] The term “medieval” denotes that which relates to the Middle Ages.