Do you wish to honor the Body of the Savior? Do not despise it when it is naked. Do not honor it in church with silk vestments while outside it is naked and numb with cold. He who said, “This is my body,” and made it so by his word, is the same that said, “You saw me hungry and you gave me no food. As you did it not to the least of these, you did it not to me.” Honor him then by sharing your property with the poor. For what God needs is not golden chalices but golden souls.

St. John Chrysostom (c. 347-407) Syrian prelate, preacher, Church Father

Homilies on the Gospel of Saint Matthew, Homily 50
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Variant: "Do you want to honour Christ’s body? Then do not scorn him in his nakedness, nor honour him here in the church with silken garments while neglecting him outside where he is cold and naked. For he who said: This is my body, and made it so by his words, also said: You saw me hungry and did not feed me, and inasmuch as you did not do it for one of these, the least of my brothers, you did not do it for me. What we do here in the church requires a pure heart, not special garments; what we do outside requires great dedication."