Annotatio II NATIVITAS: Rupert’s Exodus — bread/wine substance joined, not destroyed, into body-unity
Exodus commentary (II.10): as God did not destroy human nature when joining it into personal unity from the virgin’s womb, so He does not destroy bread-and-wine substance when joining it to the Word into unity of the crucified body and shed blood.
What we take from the altar we truly call Christ, the Lamb of God — as we confess the virgin-born man on the cross to be God.
Latin
Tum Commentario in Exodum, Lib. 2. cap. 10. expositione auctiori: Sicut, inquit, humanam naturam non destruxit, cùm illam operatione sua ex utero virginis DEUS verbo in unitatem personae conjunxit; Sic SUBSTANTIAM panis & vini, secundum exteriorem speciem, quinque sensibus subactam, non mutat aut destruit, cum eidem Verbo, in UNITATEM corporis ejusdem, quod in cruce pependit, & sanguinis ejusdem quem de latere suo fudit, ista CONJUNGIT. Ibidem: Proinde sicut hominem, ait, qui de virgine sumtus in cruce pependit, rectè & Catholicè Deum confitemur, sic veraciter hoc, quod sumimus de sancto altari, Christum dicimus, agnum Dei praedicamus.