'We do not make obeisance to the nature of wood, but we revere and do obeisance to Him who was crucified on the Cross...When the two beams of the Cross are joined together I adore the figure because of Christ who was crucified on the Cross, but if the beams are separated, I throw them away and burn them.' - Leontius of Neapolis
'Of old God the incorporeal and uncircumscribed was not depicted at all. But now that God has appeared in the flesh and lived among humans, I make an image of the God who can be seen. I do not worship matter but I worship the Creator of matter, who for my sake became material and deigned to dwell in matter, who through matter effected my salvation. I will not cease from worshipping the matter through which my salvation has been effected.' - St. John of Damascus
Iconoclasts, by rejecting all representations of God fail to take full account of the Incarnation. They seem to regard matter as a defilement - they want a religion free from contact with the material world. They lose the sense and understanding that it's not just our soul that must be saved and transfigured but our bodies as well. God, as Incarnated in Christ Jesus, deified the flesh. He redeemed matter. The world, material, is not evil in and of itself.