The idea that a priest is "in persona Christi Capitis," meaning that he represents Jesus the Head of the Christ, is a recently blossomed idea with Vatican II. It comes from 2Co 2:10 which is mistranslated in the Vulgate to mean "in the person of" (now correctly translated in the Catholic NABRE on the Vatican website to mean "in the presence of"). Aquinas wrote one sentence on the mistranslation (thinking it was correct). A Pope in 1947 wrote one sentence on Aquinas'. The Baltimore Catechism has nothing on "in persona." And yet you want me to believe this is part of the faith tradition, that the priest is like unto a god, a representative of Jesus no less. Nonsense. See #1548 in the Catechism for history

Jesus said 'do this in memory of me' to all apostles and disciples present. Compare Luke 22:35 and Luke 10:1-4. The key is who is without "purse, bag, sandals." It is the 70 (gender not specified). So not just the 12.

In John 20:19-23, Jesus speaks to “disciples,” not apostles