The formula in persona Christi owes its success to scholasticism, which used the term to define the role of the priest when, in the institutional account, pronounces the very words of Christ. The recognized validity of the anaphora of Addai and Mar–still in use in the Church of Assira of the Orient without those words–invites us not to absolutize the said formula, as if it were the only key to explain transubstantiation.
Through a conjunctural analysis of the anaphora and patristic commentaries the student will be aided:
B.D. Marliangeas, Clés pour une théologie du ministère. “In persona Christi, In persona Ecclesiæ”, Paris 1978;
C. Giraudo, “In unum corpus”. Trattato mistagogico sull’eucaristia, Cinisello B. 2007;
Id., “In persona Christi”, “In persona Ecclesiæ”. Formule eucaristiche alla luce della “lex orandi”, in Rassegna di Teologia 51 (2010) 181-195.