John 9:29
“We know that God spoke unto Moses.”
By whose word, whose report? “That of our forefathers,” says one. Is not He then more to be believed than your forefathers, who confirms by miracles that He came from God, and that He speaks things from above? They said not, “We have heard that God spoke to Moses,” but, “We know.” Do ye affirm, O Jews, what you have by hearing, as knowing it, but deem what you have by sight as less certain than what you have by hearing? Yet the one ye saw not, but heard, the other ye did not hear, but saw. What then says the blind man?
Source: Homilies on the Gospel of John (New Advent)