[18] Behold Israel after the flesh: which eat of the sacrifices partakers of the altar? [19] What say I then? that the idol any thing, or that which is offered in sacrifice to idols any thing? [20] But I say, that the things which the Gentiles sacrifice, to devils, and not to God: and I would not should have fellowship with devils. [21] Ye cannot drink the cup of the Lord, and the cup of devils: ye cannot be partakers of the Lord's table, and of the table of devils.