Note the following from John Chrysostom (347-407), tying Heb 13:10 to the Lord’s Supper, and not simply an allusion by metonymy to the atonement/cross of Jesus:
Reverence now, oh reverence, this Table whereof we all are partakers! (1 Cor. x. 16-18.) Christ, Who was slain for us, the Victim that is placed thereon! (Heb. xiii. 10.) Robbers when they once partake of salt, cease to be robbers in regard to those with whom they have partaken thereof; that table changes their dispositions, and men fiercer than wild beasts it makes gentler than lambs. But we though partakers of such a Table, and sharers of such food as that, arm ourselves against one another, when we ought to arm against him who is carrying on a war against all of us, the devil. Yet this is why we grow weaker and he stronger every day. For we do not join to form in defence against him, but along with him we stand against each other, and use him as a commander for such hostile arrays, when it is he alone that we ought to be fighting with. But now letting him pass, we bend the bow against our brethren only. What bows, you will say? Those of the tongue and the mouth. For it is not javelins and darts only, but words too, keener far than darts, that inflict wounds. And how shall we be able to bring this war to an issue? one will ask. If thou perceivest that when thou speakest ill of thy brother, thou art casting up mire out of thy mouth, if thou perceivest that it is a member of Christ that thou art slandering, that thou art eating up thine own flesh (Ps. xxvii. 2), that thou art making the judgment set for thee more bitter (fearful and uncorrupt as it is), that the shaft is killing not him that is smitten, but thyself that shot it forth. (John Chrysostom, Homilies on Paul's Epistle to the Romans, Homily VIII on Romans 4:1,2)
This has been added to my paper:
