This great dignity of priesthood has “not been granted (to) the angels,” but only received by the priest. Only the priest is allowed to consecrate the Body of Christ because in the consecration itself, the priest is not substituting for Christ, but personifying him. As Cardinal Wright rightly put it, there is “no priesthood without the Eucharist; there cannot be any Eucharist without the priesthood.” Archbishop Lepicier further notes, that it was in view of this divine Sacrament that Jesus instituted the order of priests. Thus, it is not a matter of dispensing blessings and maybe some good council, but the priest is ordained to be intrinsically united to the Eucharist which is the source and summit of all the earthly liturgy.
– Matthew Pulis An Embodied vs. a Silicon-based Priesthood: AIs can Never Be Catholic Priests