Catena Aurea on John 8:19–20: Augustine of Hippo

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.