1 Corinthians 10:23-24
8 Let us draw near to Him then with fervency and with inflamed love, that we may not have to endure punishment. For in proportion to the greatness of the benefits bestowed on us, so much the more exceedingly are we chastised when we show ourselves unworthy of the bountifulness. This Body, even lying in a manger, Magi reverenced. Yea, men profane and barbarous, leaving their country and their home, both set out on a long journey, and when they came, with fear and great trembling worshipped Him. Let us, then, at least imitate those Barbarians, we who are citizens of heaven. For they indeed when they saw Him but in a manger, and in a hut, and no such thing was in sight as you behold now, drew near with great awe; but you behold Him not in the manger but on the altar, not a woman holding Him in her arms, but the priest standing by, and the Spirit with exceeding bounty hovering over the gifts set before us. You do not see merely this Body itself as they did, but you know also Its power, and the whole economy, and art ignorant of none of the holy things which are brought to pass by It, having been exactly initiated into all.
Let us therefore rouse ourselves up and be filled with horror, and let us show forth a reverence far beyond that of those Barbarians; that we may not by random and careless approaches heap fire upon our own heads. But these things I say, not to keep us from approaching, but to keep us from approaching without consideration. For as the approaching at random is dangerous, so the not communicating in those mystical suppers is famine and death. For this Table is the sinews of our soul, the bond of our mind, the foundation of our confidence, our hope, our salvation, our light, our life. When with this sacrifice we depart into the outer world, with much confidence we shall tread the sacred threshold, fenced round on every side as with a kind of golden armor.
And why speak I of the world to come? Since here this mystery makes earth become to you a heaven. Open only for once the gates of heaven and look in; nay, rather not of heaven, but of the heaven of heavens; and then you will behold what I have been speaking of. For what is there most precious of all, this will I show you lying upon the earth. For as in royal palaces, what is most glorious of all is not walls, nor golden roofs, but the person of the king sitting on the throne; so likewise in heaven the Body of the King. But this, you are now permitted to see upon earth. For it is not angels, nor archangels, nor heavens and heavens of heavens, that I show you, but the very Lord and Owner of these. Perceivest thou how that which is more precious than all things is seen by you on earth; and not seen only, but also touched; and not only touched, but likewise eaten; and after receiving It you go home?
Make your soul clean then, prepare your mind for the reception of these mysteries. For if you were entrusted to carry a king's child with the robes, the purple, and the diadem, you would cast away all things which are upon the earth. But now that it is no child of man how royal soever, but the only-begotten Son of God Himself, Whom you received, do you not thrill with awe, tell me, and cast away all the love of all worldly things, and have no bravery but that wherewith to adorn yourself? Or do you still look towards earth, and love money, and pant after gold? What pardon then can you have? What excuse? Do you not know that all this worldly luxury is loathsome to your Lord? Was it not for this that on His birth He was laid in a manger, and took to Himself a mother of low estate? Did He not for this say to him that was looking after gain, “But the Son of Man has not where to lay His head?”
And what did the disciples? Did they not observe the same law, being taken to houses of the poor and lodged, one with a tanner, another with a tent-maker, and with the seller of purple? For they inquired not after the splendor of the house, but for the virtues of men's souls.
These therefore let us also emulate, hastening by the beauty of pillars and of marbles, and seeking the mansions which are above; and let us tread under foot all the pride here below with all love of money, and acquire a lofty mind. For if we be sober-minded, not even this whole world is worthy of us, much less porticoes and arcades. Wherefore, I beseech you, let us adorn our souls, let us fit up this house which we are also to have with us when we depart; that we may attain even to the eternal blessings, through the grace and mercy, etc.
Source: Homilies on First Corinthians (New Advent)