For the Word was and is the Word both before it took flesh and after its providential enfleshment, and God is God both before and after he took the form of a slave,45 and the true light is the true light both before it shone out in the darkness46 and afterwards. So if every pious conception of the Only-begotten that anyone can form is one of immutability and changelessness, and if he does in himself always possess those same characteristics, how can anyone make us apply the concept of a duality