Regarding the things said concerning Christ
Others again are said in the manner of association and relation, as, My God, My God, why have You forsaken Me ? and He has made Him to be sin for us, Who knew no sin , and being made a curse for us; also, Then shall the Son also Himself be subject unto Him that put all things under Him For neither as God nor as man was He ever forsaken by the Father, nor did He become sin or a curse, nor did He require to be made subject to the Father. For as God He is equal to the Father and not opposed to Him nor subjected to Him; and as God, He was never at any time disobedient to His Begetter to make it necessary for Him to make Him subject. Appropriating, then, our person and ranking Himself with us, He used these words. For we are bound in the fetters of sin and the curse as faithless and disobedient, and therefore forsaken.
Others are said by reason of distinction in thought. For if you divide in thought things that are inseparable in actual truth, to cut the flesh from the Word, the terms 'servant' and 'ignorant' are used of Him, for indeed He was of a subject and ignorant nature, and except that it was united with God the Word, His flesh was servile and ignorant. But because of the union in subsistence with God the Word it was neither servile nor ignorant. In this way, too, He called the Father His God.
Others again are for the purpose of revealing Him to us and strengthening our faith, as, And now, O Father, glorify Thou Me with the glory which I had with You, before the world was. For He Himself was glorified and is glorified, but His glory was not manifested nor confirmed to us. Also that which the apostle said, Declared to be the Son of God with power, according to the spirit of holiness, by the resurrection from the dead. For by the miracles and the resurrection and the coming of the Holy Spirit it was manifested and confirmed to the world that He is the Son of God. And this too, The Child grew in wisdom and grace.
Others again have reference to His appropriation of the personal life of the Jews, in numbering Himself among the Jews, as He says to the Samaritan woman, You worship ye know not what: we know what we worship, far salvation is of the Jews.
The third mode is one which declares the one subsistence and brings out the dual nature: for instance, And I live by the Father: so he that eats Me, even he shall live by Me. And this: I go to My Father and you see Me no more. And this: They would not have crucified the Lord of Glory. And this: And no man has ascended up to heaven but He that came down from heaven, even the Son of Man which is in heaven, and such like.
Again of the affirmations that refer to the period after the resurrection some are suitable to God, as, Baptizing them in the name of the Father, and of the Son, and of the Holy Ghost, for here 'Son' is clearly used as God; also this, And lo, I am with you always, even unto the end of the world, and other similar ones. For He is with us as God. Others are suitable to man, as, They held Him by the feet, and There they will see Me, and so forth.
Further, of those referring to the period after the Resurrection that are suitable to man there are different modes. For some did actually take place, yet not according to nature, but according to dispensation, in order to confirm the fact that the very body, which suffered, rose again; such are the weals, the eating and the drinking after the resurrection. Others took place actually and naturally, as changing from place to place without trouble and passing in through closed gates. Others have the character of simulation, as, He made as though He would have gone further. Others are appropriate to the double nature, as, I ascend unto My Father and your Father, and My God and your God, and The King of Glory shall come in, and He sat down on the right hand of the majesty on High. Finally others are to be understood as though He were ranking Himself with us, in the manner of separation in pure thought, as, My God and your God.
Those then that are sublime must be assigned to the divine nature, which is superior to passion and body: and those that are humble must be ascribed to the human nature; and those that are common must be attributed to the compound, that is, the one Christ, Who is God and man. And it should be understood that both belong to one and the same Jesus Christ, our Lord. For if we know what is proper to each, and perceive that both are performed by one and the same, we shall have the true faith and shall not go astray. And from all these the difference between the united natures is recognised, and the fact that, as the most godly Cyril says, they are not identical in the natural quality of their divinity and humanity. But yet there is but one Son and Christ and Lord: and as He is one, He has also but one person, the unity in subsistence being in nowise broken up into parts by the recognition of the difference of the natures.
Source: Exposition of the Faith (New Advent)