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. xxxviii. s. 3) This word perhapsc is used only by way of rebuke, though it seems to express doubt. As used by men indeed it is the expression of doubt, but He who knew all things could only mean by that doubt to rebuke unbelief. Nay, even we sometimes say perhaps, when they are certain of a thing, e. g. when you are angry with your slave, and say, Do not you heed me? Consider, perhaps I am your master. So our Lord’s doubt is a reproof to the unbelievers, when He says, Ye should have known perhaps My Father also.