Catena Aurea on John 5:19–20: Augustine of Hippo

Yet that walking of the flesh upon the sea was done by the Father through the Son. For when the flesh walked, and the Divinity of the Son guided, the Father was not absent, as the Son Himself saith below, The Father that dwelleth in Me, He doeth the works. (c. 14) (s. 9). He guards however against the carnal interpretation of the words, The Son can do nothing of Himself. (v. 19) As if the case were like that of two artificers, master and disciple, one of whom made a chest, and the other made another like it, by adding, For whatsoever things he doeth, these doeth the Son likewise.He does not say, Whatsoever the Father doeth, the Son does other things like them, but the very same things. The Father made the world, the Son made the world, the Holy Ghost made the world. If the Father, Son, and Holy Ghost are one, it follows that one and the same world was made by the Father, through the Son, in the Holy Ghost. Thus it is the very same thing that the Son doeth. He adds likewise, to prevent another error arising. For the body seems to do the same things with the mind, but it does not do them in a like way, inasmuch as the body is subject, the soul governing, the body visible, the soul invisible. When a slave does a thing at the command of his master, the same thing is done by both; but is it in a like way? Now in the Father and Son there is not this difference; they do the same things, and in a like way. Father and Son act with the same power; so that the Son is equal to the Father.