Tertullian. On Baptism. Edited by Alexander Roberts and James Donaldson. Translated by S. Thelwall. Vol. 3 of The Ante-Nicene Fathers. Edited by A. Cox. Grand Rapids: Eerdmans, 1957. http://ccel.org/ccel/schaff/anf03.vi.iii.xii.html.
15 Tertullian, On Baptism, ed. Alexander Roberts and James Donaldson, trans. S. Thelwall. Vol. 3 of The Ante-Nicene Fathers, ed. A. Cox (Grand Rapids: Eerdmans, 1957), 676.
19 Tertullian, On Baptism, 676.
Catherine of Sienna. "How Desire and Contrition." paragraph 6 in The Dialogue of the Seraphic Virgin Catherine of Siena. Edited and Translated by A. Thorold. London: Kegan Paul, Trench, Trubner & Co., 1907. https://ccel.org/ccel/catherine/dialog/dialog.iv.ii.iv.html.
15 Catherine of Sienna, "How Desire and Contrition," in The Dialogue of the Seraphic Virgin Catherine of Siena, eds. and trans. A. Thorold. (London: Kegan Paul, Trench, Trubner & Co., 1907), paragraph 6. https://ccel.org/ccel/catherine/dialog/dialog.iv.ii.iv.html.
19 Catherine of Senna, "How Desire and Contrition", paragraph 6.