Look, I entreat: a royal table is set before you, Angels minister at that table, the King Himself is there, and do you stand gaping? Are your garments defiled, and yet do you make no account of it?— or are they clean? Then fall down and partake. Every day He comes in to see the guests, and converses with them all. Yes, at this moment is he speaking to your conscience; “Friends, how are you standing here, not having on a wedding garment?” He said not, Why did you sit down? No, before he sat down, He declared him to be unworthy, so much as to come in. He says not, “Why did you sit down to eat,” but, “Why did you come in?” And these are the words that He is at this very moment addressing to one and all of us that stand here with such shameless effrontery. For every one, that partakes not of the mysteries, is standing here in shameless effrontery. It is for this reason, that they which are in sins are first of all put forth; for just as when a master is present at his table, it is not right that those servants who have offended him should be present, but they are sent out of the way: just so also here when the sacrifice is brought forth, and Christ, the Lord's sheep, is sacrificed; when you hear the words, “Let us pray together,” when you behold the curtains drawn up, then imagine that the Heavens are let down from above, and that the Angels are descending!
As then it is not meet that any one of the uninitiated be present, so neither is it that one of them that are initiated, and yet at the same time defiled. Tell me, suppose any one were invited to a feast, and were to wash his hands, and sit down, and be all ready at the table, and after all refuse to partake; is he not insulting the man who invited him? Were it not better for such an one never to have come at all? Now it is just in the same way that you have come here. You have sung the Hymn with the rest: you have declared yourself to be of the number of them that are Worthy, by not departing with them that are unworthy. Why stay, and yet not partake of the table? I am unworthy, you will say. Then are you also unworthy of that communion you have had in prayers. For it is not by means of the offerings only, but also by means of those canticles that the Spirit descends all around. Do we not see our own servants, first scouring the table with a sponge, and cleaning the house, and then setting out the entertainment? This is what is done by the prayers, by the cry of the herald. We scour the Church, as it were, with a sponge, that all things may be set out in a pure church, that there may be “neither spot nor wrinkle.” Unworthy, indeed, both our eyes of these sights, and unworthy are our ears! “And if even a beast,” it is said, “touch the mountain, it shall be stoned.” Thus then they were not worthy so much as to set foot on it, and yet afterwards they both came near, and beheld where God had stood. And you may, afterwards, come near, and behold: when, however, He is present, depart. You are no more allowed to be here than the Catechumen is. For it is not at all the same thing never to have reached the mysteries, and when you have reached them, to stumble at them and despise them, and to make yourself unworthy of this thing. One might enter upon more points, and those more awful still; not however to burden your understanding, these will suffice. They who are not brought to their right senses with these, certainly will not be with more.
That I may not then be the means of increasing your condemnation, I entreat you, not to forbear coming, but to render yourselves worthy both of being present, and of approaching. Tell me, were any king to give command and to say, “If any man does this, let him partake of my table;” say, would ye not do all you could to be admitted? He has invited us to heaven, to the table of the great and wonderful King, and do we shrink and hesitate, instead of hastening and running to it? And what then is our hope of salvation? We cannot lay the blame on our weakness; we cannot on our nature. It is indolence and nothing else that renders us unworthy.
So far have I spoken of myself. But may He that pricks the heart, He that gives the Spirit of compunction, pierce your hearts, and plant the seeds in the depth of them, that so through His fear ye may conceive, and bring forth the spirit of salvation, and come near with boldness. For, “your children,” it is said, “are like olive plants round about your table.” O, then, let there be nothing old, nothing wild, nothing harsh. For of such sort are the young plants that are fit for fruit, for the beautiful fruit, fruit I mean of the olive-tree. And thriving they are, so as all to be round about the table, and come together here, not in vain or by chance, but with fear and reverence. For thus shall you behold with boldness even Christ Himself in heaven, and shall be counted worthy of that heavenly kingdom, which may God grant we may all attain, in Jesus Christ, our Lord with whom to the Father, together with the Holy Spirit, be glory, might, honor, now and ever, and for ages of ages. Amen.
Source: Homilies on Ephesians (New Advent)