[OrthodoxPresbyterian]

So far, all of the Celtic Orthodox sites that I've been able to find have mentioned Holy Tradition and the consecration during the Liturgy (Mass) and have not mentioned Sola Scriptura. I believe you are correct.

In Presbyterianism also, we believe that the Bread and Wine are Under the Blessing during the celebration of the Lord's Supper.

Yet they remain -- Bread and Wine:

"The Sacraments of the Altar are not the real Body and Blood of Christ, but only the commemoration of his Body and Blood." ~~ Johannis Scotus Erigena

[FormerLib]

Yet they remain -- Bread and Wine...

With the Real Presence of Christ.

The Real Presence totally contradicts the statement "The Sacraments of the Altar are not the real Body and Blood of Christ, but only the commemoration of his Body and Blood."

If it is "only" a commemoration, there is no presence. It is bread and wine and nothing more. I guess the author and I agree as to what is on his altar table. ;-)