I speak as to wise men. As he was about to take his argument from the mystery of the Supper, he arouses them by this little preface, that they may consider more attentively the magnitude of the thing. [1] "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 a thing is it 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 want of consideration in this respect, that, while accurately instructed in the school of Christ, they allowed themselves in gross vice, as to which there was no difficulty in forming an opinion.

Footnotes

1 - "L'excellence de ce mystere;" -- "The excellence of this mystery."

I speak as to wise men - I speak to people qualified to understand the subject; and present reasons which will commend themselves to you. The reasons referred to are those which occupy the remainder of the chapter.

I speak as to wise men - The Corinthians valued themselves not a little on their wisdom and various gifts; the apostle admits this, and draws an argument from it against themselves. As ye are so wise, surely ye can see the propriety of abominating idolatry of every kind: for an idol is nothing in the world, and can do nothing for you and nothing against you.

(5) I speak as to wise men; judge ye what I say.
(5) Now returning to those idol's feasts, that he may not seem to delay at all: first he promises that he will use no other reasons, than such as they knew very well themselves. He gives the following line of reasoning. The holy banquets of the Christians are pledges, first of all, of the community that they have with Christ, and next, one with another. The Israelites also do ratify in the sacrifices, their mutual union in the very same religion. Therefore so do the idolaters also join themselves with their idols, or demons rather (for idols are nothing) in those solemn banquets, whereupon it follows, that that table is a table of demons, and therefore you must avoid it. For you cannot be partakers of the Lord and of idols together, much less may such banquets be considered as indifferent things. Will you then strive with God? And if you do, do you think that you will get the upper hand?

I speak as to wise men,.... That is, what he was now going to say concerning the Lord's supper, and the communion which believers have with Christ in it, which they as Christians must have knowledge of; and concerning the participation of the altar the Israelites had, who ate of the sacrifices of it, which many of them, being Jews, as such must know; and therefore being fully persuaded of the propriety and pertinency of the instances he was about to produce, and of the justness of his reasoning upon them, he appeals to the Corinthians, as men of wisdom and understanding in these things, and makes them themselves judges thereof:
judge what I say; consider and weigh the matter well, and you will discern and judge that what I say is proper and pertinent, just and right.

Did not the joining in the Lord's supper show a profession of faith in Christ crucified, and of adoring gratitude to him for his salvation? Christians, by this ordinance, and the faith therein professed, were united as the grains of wheat in one loaf of bread, or as the members in the human body, seeing they were all united to Christ, and had fellowship with him and one another. This is confirmed from the Jewish worship and customs in sacrifice. The apostle applies this to feasting with idolaters. Eating food as part of a heathen sacrifice, was worshipping the idol to whom it was made, and having fellowship or communion with it; just as he who eats the Lord's supper, is accounted to partake in the Christian sacrifice, or as they who ate the Jewish sacrifices partook of what was offered on their altar. It was denying Christianity; for communion with Christ, and communion with devils, could never be had at once. If Christians venture into places, and join in sacrifices to the lust of the flesh, the lust of the eye, and the pride of life, they will provoke God.

Appeal to their own powers of judgment to weigh the force of the argument that follows: namely, that as the partaking of the Lord's Supper involves a partaking of the Lord Himself, and the partaking of the Jewish sacrificial meats involved a partaking of the altar of God, and, as the heathens sacrifice to devils, to partake of an idol feast is to have fellowship with devils. We cannot divest ourselves of the responsibility of "judging" for ourselves. The weakness of private judgment is not an argument against its use, but its abuse. We should the more take pains in searching the infallible word, with every aid within our reach, and above all with humble prayer for the Spirit's teaching (Acts 17:11). If Paul, an inspired apostle, not only permits, but urges, men to judge his sayings by Scripture, much more should the fallible ministers of the present visible Church do so.
To wise men--refers with a mixture of irony to the Corinthian boast of "wisdom" (1-Corinthians 4:10; 2-Corinthians 11:19). Here you have an opportunity of exercising your "wisdom" in judging "what I say."