The first point to be noticed in the comparison is the use of the title “Son of God.”  For this Eusebius in his Creed had substituted “Word of God.”  Athanasius explains the significance of the change:  “Uniting the two titles, Scripture speaks of ‘Son’ in order to herald the natural and true offspring of His essence (οὐσίας); and on the other hand that none may think of the offspring as human, in again indicating His essence it calls Him Word, and Wisdom, and Radiance, for from this we infer that the generation was impassible (ἀπαθές), and eternal, and becoming to God Contra Arianos, Or. i. 28..”