
Augustine of Hippo
Catena Aurea · Johannesevangelium 8
Then said they unto him, Where is thy Father? Jesus answered, Ye neither know me, nor my Father: if ye had known me, ye should have known my Father also. These words spake Jesus in the treasury, as he taught in the temple: and no man laid hands on him; for his hour was not yet come.
(Tract. xxxvii. 7) What does this mean: If ye knew Me, ye would know My Father also, but, I and My Father are one? It is a common expression, when you see one man very like another, If you have seen him, you have seen the other. You say this, because they are so like. And thus our Lord says, If ye had known Me, ye had known My Father also; not that the Father is the Son, but that the Son is like the Father.