v. 20 — For the Father loveth the Son
Commentary on the Gospel according to John · St Cyril of Alexandria
Those who were heedlessly blaspheming against Him by reason of the sabbath, Christ convicts of being foolishly exasperated to empty anger, making most clear proof of the matter by saying that He is loved by His Father. For if the Father wholly loveth the Son, it is plain that He loves Him not as grieving Him, but rather as gladdening Him in what He does and works. Vainly then do they persecute Him Who refuseth not to shew mercy on the sabbath, and hereby again are they found opposing the decrees of God the Father. For they think they ought to hate Him Whom He loves, but it is altogether (I suppose) manifest, that He would never have loved Him if He had gone contrary to the Will of His Father, and been accustomed to do of Himself and Alone whatsoever Himself willed. But since He justly loves, He approves, it is plain, and agrees to the breaking of the sabbath, and shews that it has nothing in respect of which God the Lord of the Law might reasonably be angry.
CyrJn 2.20.1
Needs does He subjoin this too to the preceding; and wherefore, I will say. Fathers who are among us, sometimes overcome by natural affection, bear with their sons grieving them, and seeing them attempt things against their judgment, they often suffer it. For vehement is the yearning love implanted in them in respect of their children persuading them to overcome all littleness of soul towards them. But not thus (saith He) does God the Father love the Son, for He cannot do anything which He too does not work by Nature, but as having One Essence with Him, He is called by certain Physical laws, so to say, to identical Will and Power. The Son then (saith He) worketh nothing contrary to what is pleasing or fitting to the Father, nor does He vaunt Himself in the love of the Father, as though a lover of novelty in His works and unbridled, but whatsoever things He sees Him doing, as in conception, all these He performeth restrained by Identity of Essence from falling aside in ought that is befitting God. For He hath no part with change in ought, or variableness: for He remaineth the Same unceasingly, as the Psalmist says. The Father again sheweth the Son what He Himself doeth, not as though setting before Him things depicted on a tablet, or teaching Him as though ignorant (for He knoweth all things as God): but depicting Himself wholly in the Nature of His Offspring, and shewing in Him His Own Natural Properties in order that from what Properties Himself is and is manifested, He may know of what kind and Who He is by nature That begat Him. Therefore Christ says, that no man knoweth Who the Son is but the Father, and Who the Father is, but the Son. For the accurate knowledge of each is in Both, not by learning, but by Nature. And God the Father seeth the Son in Himself, the Son again seeth the Father in Himself. Therefore He saith, I am in the Father and, the Father in Me. But "to see" and "to be seen" must here be conceived of after a Divine sort.
CyrJn 2.20.3
Above the blessed Evangelist says, The Jews were seeking to kill Jesus, because He was not only breaking the sabbath, but saying also that God was His Father, making Himself Equal with God. He therefore put down the accusation respecting the sabbath, by shewing that the Father Himself worked on the sabbath day, and expending many words thereupon: and endeavours to teach them that He is in Equality with the Father, even when made Man for our sakes (for this was what the argument yet lacked), and therefore does He say And greater works than these will He shew Him that YE may marvel. And what again does He will to shew us hereby?
CyrJn 2.20.5
The paralytic (it says) has been healed, which had an infirmity thirty and eight years. And marvellous indeed the Power of Him That healed him, God-befitting exceedingly the Authority. This so great Wonderworker, no one (I suppose) in his senses would blame for saying that He is God, and since He is Son, Equal in all things to Him That begat Him. But since ye (He says) imagining things most wicked and foolish, are offended because of this mortal Body, ye must needs learn that My Authority and Power stop not here: for ye shall be, even though ye will it not, spectators of greater wonders, to wit of the resurrection of the dead, and yet more shall ye be astonished, seeing Power and Glory befitting God, in Me Whom now ye charge with blasphemy and are not ashamed to persecute, for merely saying, I am the Son of God.
CyrJn 2.20.6