Gaius Marius Victorinus

In his own words on Isaiah

• Isaiah 40:5

  But when he took on flesh, he took on the universal logos of flesh. For he triumphed over the powers of all flesh in the flesh, and thus he came to the aid of all flesh, as is said in Isaiah, "all flesh will see the salvation of God," and in the psalms, "All flesh will come to you."

  AGAINST ARIUS 3:3

• Isaiah 43:10

  If Christ is Son, Christ is certainly after God. But after God there is nothing comparable to him. Christ is therefore not comparable to God; or if he is not after God, certainly he is with God; for in no way can he be before God; therefore he is consubstantial (homoousion) … substance as substance, especially if it is a homogeneous substance that is realized in two or more individuals, which is said to be identical substance, not similar.

  AGAINST ARIUS 2:1.1

• Isaiah 45:14

  But consider this also in relation to the homoousion [that the Son is of the same essence as the Father], how the Spirit says to Isaiah, "God is in you, and there is no God outside of you."

  AGAINST ARIUS 1A.27

• Isaiah 53:8

  Those who do not understand the manner of begetting may mislead you when they say, "Who can speak of the birth of the Lord?" First, "who" or still more "no one" does indeed seem to signify men. Only the Holy Spirit can grasp or explain this manner of begetting. That is why we ourselves with the permission of God the Father and of Jesus Christ our Lord have set it forth. Certainly it is not a hopeless enterprise, but we have described it as by a miracle. Next, supposing that the manner of begetting is unknown, we speak of substance when we say that the Father and Son are of the same essence (homoousios).

  ON THE NECESSITY OF ACCEPTING HOMOOUSION 4