I do not venerate the creation over the creator, but I venerate the creator who became creation like me, and came down into creation without humiliation and without being debased, in order to glorify my nature and make me to be partaker of the divine nature …. For the nature of flesh has not become deity, but, as the Word became flesh without change, remaining as he was, likewise the flesh became Word, without losing what it is, identifying moreover with the Word hypostatically. Thus, taking courage, I represent God, the invisible, not as invisible, but insofar as he has become visible for us by participation in flesh and blood. I do not represent the invisible deity but I represent the flesh of God which has been seen. 

St. John of Damascus, on the veneration of icons