Hilary of Poitiers
Catena Aurea · Johannesevangelium 5
Then answered Jesus and said unto them, Verily, verily, I say unto you, The Son can do nothing of himself, but what he seeth the Father do: for what things soever he doeth, these also doeth the Son likewise. For the Father loveth the Son, and sheweth him all things that himself doeth: and he will shew him greater works than these, that ye may marvel.
(vii. de Tr. c. 17) That the wholesome order of our confession, i. e. that we believe in the Father and the Son, might remain, He shews the nature of His birth; viz. that He derived the power of acting not from an accession of strength supplied for each work, but by His own knowledge in the first instance. And this knowledge He derived not from any particular visible precedents, as if what the Father had done, the Son could do afterwards; but that the Son being born of the Father, and consequently conscious of the Father’s virtue and nature within Him, could do nothing but what He saw the Father do: as he here testifies; God does not see by bodily organs, but by the virtue of His nature.