Whether it is lawful for a priest to refrain entirely from consecrating the Eucharist?

❌ Objection 1 : It seems to be lawful for a priest to refrain entirely from consecrating the Eucharist. Because, as it is the priest's office to consecrate the Eucharist, so it is likewise to baptize and administer the other sacraments. But the priest is not bound to act as a minister of the other sacraments, unless he has undertaken the care of souls. Therefore, it seems that likewise he is not bound to consecrate the Eucharist except he be charged with the care of souls.

❌ Objection 2 : Further, no one is bound to do what is unlawful for him to do; otherwise he would be in two minds. But it is not lawful for the priest who is in a state of sin, or excommunicate, to consecrate the Eucharist, as was said above (Article [7]). Therefore it seems that such men are not bound to celebrate, and so neither are the others; otherwise they would be gainers by their fault.

❌ Objection 3 : Further, the priestly dignity is not lost by subsequent weakness: because Pope Gelasius I says (cf. Decretal, Dist. 55): "As the canonical precepts do not permit them who are feeble in body to approach the priesthood, so if anyone be disabled when once in that state, he cannot lose that he received at the time he was well." But it sometimes happens that those who are already ordained as priests incur defects whereby they are hindered from celebrating, such as leprosy or epilepsy, or the like. Consequently, it does not appear that priests are bound to celebrate.