Eucharistic Prayer III: The Sunday Prayer and the "Pure Offering" of Malachi

Dr. Pitre presents Eucharistic Prayer III as the carefully worded, elegantly structured prayer the Church prefers for Sundays and festive days (GIRM 365) — drafted for the reformed Missal by Cyprian Vagaggini and drawing on Gallican, Mozarabic, and Eastern sources. Its defining biblical thread is Malachi's prophecy that "from the rising of the sun to its setting a pure sacrifice may be offered to your name" (Malachi 1:11), and the session follows that prophecy forward: the Didache applying it to the Lord's Day Eucharist and the Council of Trent naming the Mass as its fulfillment (the "munda oblatio"). Dr. Pitre lays the prayer alongside its ancient and medieval parallels — the Mozarabic liturgy, the Anaphoras of Theodore of Mopsuestia, St. Basil, and St. Clement — and closes with St. Cyril of Jerusalem on the Real Presence. The video explores how this prayer is stitched together and why Malachi stands at its heart, without pre-empting the conclusions.

Key passages & sources examined: GIRM 365; Roman Missal, Order of Mass nos. 107-113; Malachi 1:11; Didache 14; Council of Trent (Sacrifice of the Mass, ch. 1); the Mozarabic Liturgy; Anaphora of Theodore of Mopsuestia; Anaphora of St. Basil; St. Cyril of Jerusalem, Mystagogical Catecheses