Texts Explained; Twelfthly, Matthew 26:39; John 12:27, etc. Arianinferences are against the Regula Fidei, as before. He wept and the like, as man. Other texts prove Him God. God could not fear. He feared because His flesh feared
54 Therefore as, when the flesh advanced, He is said to have advanced, because the body was His own, so also what is said at the season of His death, that He was troubled, that He wept, must be taken in the same sense. For they, going up and down, as if thereby recommending their heresy anew, allege; “Behold, 'He wept,' and said, 'Now is My soul troubled,' and He besought that the cup might pass away; how then, if He so spoke, is He God, and Word of the Father?” Yea, it is written that He wept, O God's enemies, and that He said, 'I am troubled,' and on the Cross He said, 'Eloi, Eloi, lama sabachthani,' that is, 'My God, My God, why have You forsaken Me?' and He besought that the cup might pass away. Thus certainly it is written; but again I would ask you (for the same rejoinder must of necessity be made to each of your objections), If the speaker is mere man, let him weep and fear death, as being man; but if He is the Word in flesh (for one must not be reluctant to repeat), whom had He to fear being God? Or wherefore should He fear death, who was Himself Life, and was rescuing others from death? Or how, whereas He said, 'Fear not him that kills the body,' should He Himself fear? And how should He who said to Abraham, 'Fear not, for I am with you,' and encouraged Moses against Pharaoh, and said to the son of Nun, 'Be strong, and of a good courage,' Himself feel terror before Herod and Pilate? Further, He who succours others against fear (for 'the Lord,' says Scripture, 'is on my side, I will not fear what man shall do unto me '), did He fear governors, mortal men? Did He who Himself had come against death, feel terror of death? Is it not both unseemly and irreligious to say that He was terrified at death or hades, whom the keepers of the gates of hades saw and shuddered? But if, as you would hold, the Word was in terror wherefore, when He spoke long before of the conspiracy of the Jews, did He not flee, nay said when actually sought, 'I am He?' for He could have avoided death, as He said, 'I have power to lay down My life, and I have power to take it again;' and 'No one takes it from Me. '
55. But these affections were not proper to the nature of the Word, as far as He was Word; but in the flesh which was thus affected was the Word, O Christ's enemies and unthankful Jews! For He said not all this prior to the flesh; but when the 'Word became flesh,' and has become man, then is it written that He said this, that is, humanly. Surely He of whom this is written was He who raised Lazarus from the dead, and made the water wine, and vouchsafed sight to the man born blind, and said, 'I and My Father are one. ' If then they make His human attributes a ground for low thoughts concerning the Son of God, nay consider Him altogether man from the earth, and not from heaven, wherefore not from His divine works recognise the Word who is in the Father, and henceforward renounce their self-willed irreligion? For they are given to see, how He who did the works is the same as He who showed that His body was passible by His permitting it to weep and hunger, and to show other properties of a body. For while by means of such He made it known that, though God impassible, He had taken a passible flesh; yet from the works He showed Himself the Word of God, who had afterwards become man, saying, Though you believe not Me, beholding Me clad in a human body, yet believe the works, that you may know that “I am in the Father, and the Father in Me.” 'And Christ's enemies seem to me to show plain shamelessness and blasphemy;' for, when they hear 'I and the Father are one,' they violently distort the sense, and separate the unity of the Father and the Son; but reading of His tears or sweat or sufferings, they do not advert to His body, but on account of these rank in the creation Him by whom the creation was made. What then is left for them to differ from the Jews in? For as the Jews blasphemously ascribed God's works to Beelzebub, so also will these, ranking with the creatures the Lord who wrought those works, undergo the same condemnation as theirs without mercy.
56. But they ought, when they hear 'I and the Father are one,' to see in Him the oneness of the Godhead and the propriety of the Father's Essence; and again when they hear, 'He wept' and the like, to say that these are proper to the body; especially since on each side they have an intelligible ground, viz. that this is written as of God and that with reference to His manhood. For in the incorporeal, the properties of body had not been, unless He had taken a body corruptible and mortal; for mortal was Holy Mary, from whom was His body. Wherefore of necessity when He was in a body suffering, and weeping, and toiling, these things which are proper to the flesh, are ascribed to Him together with the body. If then He wept and was troubled, it was not the Word, considered as the Word, who wept and was troubled, but it was proper to the flesh; and if too He besought that the cup might pass away, it was not the Godhead that was in terror, but this affection too was proper to the manhood. And that the words 'Why have You forsaken Me?' are His, according to the foregoing explanations (though He suffered nothing, for the Word was impassible), is notwithstanding declared by the Evangelists; since the Lord became man, and these things are done and said as from a man, that He might Himself lighten these very sufferings of the flesh, and free it from them. Whence neither can the Lord be forsaken by the Father, who is ever in the Father, both before He spoke, and when He uttered this cry. Nor is it lawful to say that the Lord was in terror, at whom the keepers of hell's gates shuddered and set open hell, and the graves did gape, and many bodies of the saints arose and appeared to their own people. Therefore be every heretic dumb, nor dare to ascribe terror to the Lord whom death, as a serpent, flees, at whom demons tremble, and the sea is in alarm; for whom the heavens are rent and all the powers are shaken. For behold when He says, 'Why have You forsaken Me?' the Father showed that He was ever and even then in Him; for the earth knowing its Lord who spoke, straightway trembled, and the veil was rent, and the sun was hidden, and the rocks were torn asunder, and the graves, as I have said, did gape, and the dead in them arose; and, what is wonderful, they who were then present and had before denied Him, then seeing these signs, confessed that 'truly He was the Son of God. '
Source: Four Discourses Against the Arians (New Advent)