165. It is now possible to recognize the oneness of the majesty and rule in the Father, the Son, and the Holy Spirit. For many say that it was God the Father Who was seen at that time by Isaiah. Paul says it was the Spirit, and Luke supports him. John the Evangelist refers it to the Son. For thus has he written of the Son: “These things spake Jesus, and departed and hid Himself from them. But though He had done so great signs before them, they did not believe on Him, that the word of Isaiah might be fulfilled which he spake, Lord, who hath believed our report, and to whom hath the Arm of the Lord been revealed? Isa. liii. 1. Therefore, they could not believe, because Isaiah said again, He hath blinded their eyes and hardened their heart, that they might not see with their eyes and understand with their heart and be converted, and I should heal them. Isa. vi. 10. These things said Isaiah when he saw His glory, and spake of Him.” S. John xii. 36–41.