I don’t believe Irenaeus was affirming consubstantiation, myself. Consubstantiation, and Transubstantiation for that matter, are later. I am reluctant to use early Church Fathers to support or deny later positions, either for or against.
The use of the term “with” was never intended to be anymore than “is”. Throughout the confessions, when “in and under” (usual), or “in, with and under” (once), there is always the statment that it is His body and blood. And Lutherans would never deny that there is certainly a change.
the term is eschewed because the philosophy is. The reason that Lutheran pastor probably used the term is because, I suspect, he knew that you were Catholic, as you said, and he knows you think in terms of the metaphysics.
Now, I personally have no problem with that, mainly because the evidence I see from Catholic theologians is that they don’t particularly see a Church-dividing difference.
prounione.urbe.it/dia-int/l-rc/doc/e_l-rc_eucharist.html
And if pushed to speak of the RP in terms of metaphysics, I see Transub. more scriptural than consub. Christ did not say “this is my body mixed with bread”, etc.
Agreed.
Jon