Barnes New Testament Notes

Verses 15, 16. Know ye not, etc. This is the third argument against licentiousness. It is, that we, as Christians, are united to Christ, (comp. See Barnes "Joh 15:1, etc.;) and that it is abominable to take the members of Christ, and subject them to pollution and sin. Christ was pure, wholly pure. We are professedly united to him. We are bound therefore to be pure, as he was. Shall that which is a part, as it were, of the pure and holy Saviour, be prostituted to impure and unholy embraces?

God forbid. See Barnes "Ro 3:4".

This expresses the deep abhorrence of the apostle at the thought. It needed not argument to show it. The whole world revolted at the idea; and language could scarcely express the abomination of the very thought.

Know ye not, etc. This is designed to confirm and strengthen what he had just said.

He which is joined. Who is attached to; or who is connected with.

Is one body. That is, is to be regarded as one; is closely and intimately united. Similar expressions occur in classic writers. See Grotius and Bloomfield.

For two, saith he, etc. This Paul illustrates by a reference to the formation of the marriage connexion in Ge 2:24. He cannot be understood as affirming that that passage had original reference to illicit connexions; but he uses it for purposes of illustration. God had declared that the man and his wife became one; in a similar sense, in unlawful connexions the parties became one.

{a} "members of Christ" Eph 5:30