Now, the power that restores is the power of the whole Trinity, whom Holy Mother Church believes in her heart, confesses in word, and proclaims in signs, recognizing the distinction, properties, order, and natural origin of the three persons. This power is also that of the passion of Christ, who died, and was buried, and rose again on the third day. Therefore, to express all these things in the sacrament which is the first of all the sacraments and in which this power is first and primarily active, there ought to be an expression of the Trinity through a distinct, proper, and orderly mention of names.
[St. Bonaventure, Breviloquium, Monti, ed. and tr., Franciscan Institute Publications (St. Bonaventure, NY: 2005) p. 233.]