Then said they unto him, Where is your Father? Jesus answered,
You neither know me, nor my Father: if you had known me, you should have known my Father also.
All Commentaries on John 8:19 Go To John 8
Theophilus of Antioch
AD 184
Some remark that this is said in contumely and contempt; to insinuate either that He is born of fornication, and knows not who His Father is; or as a slur on the low situation of His father, i.e. Joseph; as if to say, Your father is an obscure, ignoble person; why do you so often mention him? So because they asked the question, to tempt Him, not to get at the truth, Jesus answered, You neither know Me, nor My Father.
Let the Arian blush: for if, as he says, the Son be a creature, how does it follow that he who knows the creature, knows God? For not even by knowing the substance of Angels, does one know the Divine Substance? Forasmuch therefore as he who knows the Son, knows the Father, it is certain that the Son is consubstantial with the Father.