And the eyes of them both were opened, and they knew that they were naked; and they sewed fig leaves together, and made themselves aprons.
All Commentaries on Genesis 3:7 Go To Genesis 3
John Chrysostom
AD 407
It wasn’t the eating from the tree that opened their eyes: they could see even before eating. Instead the eating from this tree was the symptom of their disobedience and the breaking of the command given by God; and through their guilt they consequently divested themselves of the glory surrounding them, rendering themselves unworthy of such wonderful esteem. Hence Scripture takes up the point in its customary way with the words, “They both ate. Their eyes were opened, and they realized they were naked.” Because of the fall they were stripped of grace from above, and they felt the sense of their obvious nakedness so that through the shame that overcame them they might know precisely what peril they had been led into by breaking the Lord’s command.