because God is also called light and Christ is called light, and likewise also the Father is called God and Christ is called God, this certainly is evident; but indeed, “God from God” is not read in Scripture, nor is “light from light.” But it was legitimate to draw these expressions from Scripture. Therefore it is legitimate to compose from Scripture terms not read there. You deny that homoousion (consubstantial) is read in Scripture. But if similar terms or those derived in a similar way are read
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