Alcuin of York — on Rev 1:14 (COMMENTARY ON REVELATION)

“And his head and his hairs were white, as white wool, and as snow. Christ's head is God the Father; whence the apostle: The head of Christ is God; [1 Cor. 11:3] whose eternity is represented, according to the habit of human speech, by the whiteness of the head. Allegorically, the head of the Church is its Redeemer, according to this: The head of man is Christ. [Ibid.] The hairs are the most excellent people in the Church, who are compared to lambs, that is to wool, because of their innocence, and to snow because of the resurrection. Because Christ has shown both in himself (i.e. innocence and resurrection, the former of which we are ordered to imitate, the latter of which we are ordered to expect) not only the hairs, but also the whole head is assimilated to white wool and snow. And his eyes were as a flame of fire. These eyes are those concerning which it is said later, I saw a Lamb as it were slain, having seven eyes, which are the seven Spirits of God; [Rev. 5:6] for since the Holy Spirit both enlightens the Church to faith and burns it to the love of God, it is right for him to be assimilated to the lights of eyes and to a flame of fire. These eyes may also represent spiritual angels in the Church who enlighten the same Church with the light of knowledge and provide the fire of love.”