John Calvin Commentary 1 Corinthians 10:15

"I speak as to wise men; judge ye what I say." — 1 Corinthians 10:15 (ASV)

I speak as to wise men. As he was about to draw his argument from the mystery of the Supper, he rouses them with this brief preface, so that they might consider more attentively the significance of the matter. “I do not address mere novices. You understand the efficacy of the sacred Supper; in it we are ingrafted into the Lord’s body. How unseemly it is, then, that you should enter into fellowship with the wicked, so as to be united in one body. At the same time, he tacitly reproves their lack of consideration in this respect: that, while accurately instructed in the school of Christ, they indulged in gross vice, about which there was no difficulty in forming a judgment.