16.  Wouldest thou receive yet a third testimony to Christ’s Godhead?  Hear Esaias saying, Egypt hath laboured, and the merchandise of Ethiopia:  and soon after, In Thee shall they make supplication, because God is in Thee, and there is no God save Thee.  For Thou art God, and we knew it not, the God of Israel, the Saviour Isa. xlv. 14, 15:  “They shall make supplication unto thee, saying, surely God is in thee.”  The words are addressed to Jerusalem as the city of God.  Cyril applies them to the Son, misled by the Septuagint..  Thou seest that the Son is God, having in Himself God the Father:  saying almost the very same which He has said in the Gospels:  The Father is in Me, and I am in the Father John xiv. 11..  He says not, I am the Father, but the Father is in Me, and I am in the Father.  And again He said not, I and the Father am Athanasius (c. Arian. Or. iv. § 9), arguing for the ὁμοούσιον says:  “These are two, because there is Father and Son, that is the Word; and one, because one God.  For if this is not so, He would have said, I am the Father, or, I and the Father am.” one, but, I and the Father am one, that we should neither separate them, nor make a confusion of Son-Father See iv. 8, notes 7 and 8..  One they are because of the dignity pertaining to the Godhead, since God begat God.  One in respect of their kingdom; for the Father reigns not over these, and the Son over those, lifting Himself up against His Father like Absalom:  but the kingdom of the Father is likewise the kingdom of the Son.  One they are, because there is no discord nor division between them:  for what things the Father willeth, the Son willeth the same.  One, because the creative works of Christ are no other than the Father’s; for the creation of all things is one, the Father having made them through the Son:  For He spake, and they were made; He commanded, and they were created, saith the Psalmist Psa. xxxiii. 9; cxlviii. 5.  S. Cyril explains the creative “Fiat” in Gen. i. as addressed by the Father to the Son..  For He who speaks, speaks to one who hears:  and He who commands, gives His commandment to one who is present with Him.