Does the Church teach that the Real Presence is found only in those liturgies with a valid priesthood and nowhere else with certainty?
Or, is it just that Catholic/Orthodox churches are the only places where we have something like a guarantee and those celebrations outside we cannot say with faith that it truly is the Body and Blood?
That is, does the Church teach that it is definitely not the Body and Blood outside of the visible Church, or do we just say that we cannot say one or way the other? That we just know with certainty that ours is the true Sacrament but cannot say anything certain about the outsiders?
I would have hard time with the stronger form of the claim. I can say with certainty that I receive our Lord’s Flesh in the Eucharist because of the unbroken Tradition and Apostolic succession. But I do not see with what basis I can make any assertion about what God may do outside of that succession and Tradition.
Seems to me that if God wants to honor another believing community with His Precious Body and Blood, that is His business. It is just not part of our revelation that He is in fact doing so.
It is part of our Revelation that the Lord graces us with His Presence in our Sacrament. Is it also Revelation that He does so nowhere else?