From some of my previous posts explaining this:
“Consubstantiation” is not Lutheran teaching. It’s a term that was made up by Crypto-Calvinists who had infiltrated Lutheran churches back in the mid-to-late 1500s. They presented themselves as if they were Lutheran, but taught something radically different. They wanted to confuse Lutherans into thinking the Lutheran position was just as Aristotelian as the Roman Catholics understanding, Transubstantiation. That way, they could snarkily say, “See, you’re just as mistaken! Obviously, ‘our’ Dr. Luther really wanted to hold a Calvinist view of the Sacraments.” But Lutherans hold to the mystical
Sacramental Union, not Consubstantiation. It’s more akin to the Eastern Orthodox understanding of the Mystery than to Consubstantiation.
Consubstantiation, like Transubstantiation, supposes that changes or additions happen in the ‘accidents’ and ‘substances.’ Consubstantiation essentially creates a third ‘thing’ from the combination of bread/wine with Body/Blood, while Transubstantiation essentially believes that bread/wine cease to exist altogether.
Some basics:
Transubstantiation reasons that the entire “substance” of the bread and wine is changed into Christ’s Body and Blood, until only the “accidents” of bread (taste, consistency, color, etc.) remain.
Consubstantiation reasons that the bread and the wine and the Body and the Blood are united in some way that, more or less, creates some new, third substance. I don’t know of any sect today that actually believes in Consubstantiation, though even some Lutherans have been duped into using the term (but not the beliefs behind it, thank God!). Consubstantiation has been explained as:
- As an actual creation of a third substance
- As impanation - where the substances don’t change, but Christ’s presence is substantially stored in the substance of the bread and wine
- As incorporation - where the substances don’t change, but Christ’s presence is mingled into the substance of the bread and wine
- In countless other messy, over-thought interminglings of the “substances” and “accidents” in an array of almost comical combinations.
Sacramental Union, which Lutherans actually believe, does not attempt to reason out the miracle of the Sacrament of the Altar. It simply trusts that Christ does what He says He does; that He truly, physically gives Himself for us for the forgiveness of sins in (and with/under/in every inadequate human way of understanding) the bread and the wine. Lutherans simply acknowledge that Christ is really, truly, physically present in every possible way (in, with, under, around, over, behind, whatever-- it’s real and present here, not merely spiritual and far away in heaven, like in Calvinism) and do not attempt to explain how this happens like Transubstatiationists or Consubstantiationists. Similar to the Orthodox. Or many pre-Tridentine Catholics, for that matter.