The priests of the Church are not infallible, and must occasionally be in a state of mortal sin at the time he must offer a Mass. What does he do to offer the Mass? Our Lady was without Sin in order to carry Him, what must the Priest do to consecrate Him in this state? He if “like the rest of us” would not be able to receive the Eucharist. What does he do to consecrate and consume the Eucharist validly?