Whether a wicked priest can consecrate the Eucharist?

❌ Objection 1 : It seems that a wicked priest cannot consecrate the Eucharist. For Jerome, commenting on Sophon. iii, 4, says: "The priests who perform the Eucharist, and who distribute our Lord's blood to the people, act wickedly against Christ's law, in deeming that the Eucharist is consecrated by a prayer rather than by a good life; and that only the solemn prayer is requisite, and not the priest's merits: of whom it is said: 'Let not the priest, in whatever defilement he may be, approach to offer oblations to the Lord'" (Lev. 21:21, Septuagint). But the sinful priest, being defiled, has neither the life nor the merits befitting this sacrament. Therefore a sinful priest cannot consecrate the Eucharist.

❌ Objection 2 : Further, Damascene says (De Fide Orth. iv) that "the bread and wine are changed supernaturally into the body and blood of our Lord, by the coming of the Holy Ghost." But Pope Gelasius I says (Ep. ad Elphid., cf. Decret. i, q. 1): "How shall the Holy Spirit, when invoked, come for the consecration of the Divine Mystery, if the priest invoking him be proved full of guilty deeds?" Consequently, the Eucharist cannot be consecrated by a wicked priest.

❌ Objection 3 : Further, this sacrament is consecrated by the priest's blessing. But a sinful priest's blessing is not efficacious for consecrating this sacrament, since it is written (Malachi 2:2): "I will curse your blessings." Again, Dionysius says in his Epistle (viii) to the monk Demophilus: "He who is not enlightened has completely fallen away from the priestly order; and I wonder that such a man dare to employ his hands in priestly actions, and in the person of Christ to utter, over the Divine symbols, his unclean infamies, for I will not call them prayers."