14 “This commandment,” He says, “have I received of my Father.” The Word received not the commandment in word, but in the only begotten Word of the Father every commandment resides. But when the Son is said to receive of the Father what He possesses essentially in Himself, as it is said, “As the Father has life in Himself, so has He given to the Son to have life in Himself,” while the Son is Himself the life,there is no lessening of His authority, but the setting forth of His generation.
For the Father added not after-gifts as to a son whose state was imperfect at birth, but on Him whom He begot in absolute perfection He bestowed all gifts in begetting. In this manner He gave Him equality with Himself, and yet begot Him not in a state of inequality. But while the Lord thus spoke, for the light was shining in the darkness, and the darkness comprehended it not, “there was a dissension again created among the Jews for these sayings, and many of them said, He has a devil, and is mad: why hear ye him?” This was the thickest darkness. Others said, “These are not the words of him that has a devil; can a devil open the eyes of the blind?” The eyes of such were now begun to be opened.
Source: Tractates on the Gospel of John (New Advent)