As to the sects' table being the table of devils, it is simply monstrous folly: the apostle is speaking [1 Cor. 10] of idols according to the passage in Deuteronomy [32:17]. I have heard an individual saying it, but only proving his own ignorance. With my light I could not own them to be the Lord's table; but dear saints, I do not doubt for a moment, go there with delight in the Lord, and get individual blessing from Him who loves them. I think they lose much, but may enjoy Him in their souls by individual faith.
All I see in chapter 10 is that, in partaking at the Lord's table, they are identified with the Lord as the Israelites with Jehovah and the Gentiles with their devils; and these last could not go with the other. In chapter xi. they were not eating the Lord's supper, but their own, and so abusing shockingly what it professed to be, for which they were chastened severely. I think you would find it hard to make out peculiar church or future blessing, save that it is, besides its immediate purpose of remembering the blessed Lord, the symbol of the one body. There is in the gospels a special reference to founding, on God's side, the new covenant in His blood, "shed for many" as well as Israel; but this is referred to in general in chapter 11....