If you speak of pagan abuses, these abuses do not make our veneration of images loathsome. Blame the pagans, who made images into gods! Just because the pagans used them in a foul way, that is no reason to object to our pious practice. Sorcerers and magicians use incantations and the Church prays over catechumens; the former conjure up demons while the Church calls upon God to exorcise the demons. Pagans make images of demons which they address as gods, but we make images of God incarnate, and of His servants and friends, and with them we drive away the demonic hosts... If the Scripture says, The idols of the nations are silver and gold, the work of men's hands (Ps. 135:15), it is not forbidden to bow before inanimate things, or the handiwork of men, but only before those images which are the devil's work.
An icon is a symbol of the invisible. It depicts not only the outward, visible countenance of the Lord and His saints, but also their inner likeness, their sanctity.
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.
