Presupposing is the problem. I come not but for the lost sheep of the house of Israel.
I'm not saying I am presupposing Catholicism when I read Scripture, I am saying that on Catholicism, Catholicism is being presupposed by the Scripture. The argument from Scripture for Catholicism is like the argument from Scripture for the Trinity, in that, it's a transcendental argument, where you try to prove that unless what is presupposed is presupposed, then the Scripture would not say what it does say. (All this means is that the Bible is not exactly a textbook or a "SOF", which I don't think is controversial.)
There is no institution of symbolism. He stated the symbolism of the Passover to them, while hiding the meaning from them.
He claimed to be the fulfillment of the Passover Lamb, and to be celebrating the fulfillment of the Passover feast, or meal, or supper—the Eucharist. We are to do likewise, in memory of Him, just as 1st Corinthians 11 also says.
Read what Paul said again about the Passover during the dispensation of grace. 1 Corinthians 11, without presupposing anything from false teachers in the third century where Paul said let them go to hell.
20 Therefore when you come together in one place, it is not to eat the Lord’s Supper.
I know that you know that the One Church has always believed the Eucharist is more than mere symbol and memorialism. Beyond what's said straightforwardly in the Scripture, 1st Corinthians 10 and 11, John 6, Ignatius says, in like AD 107, that Christians believed in Christ's True Presence in Holy Communion.
