Unto Adam also and to his wife did the LORD God make coats of skins, and clothed them.
All Commentaries on Genesis 3:21 Go To Genesis 3
Augustine of Hippo
AD 430
[Adam and Eve], who were stripped of their first garment [of innocence], deserved by their mortality garments of skin. For the true honor of man is to be the image and the likeness of God that is preserved only in relation to him by whom it is impressed. Hence, he clings to God so much the more, the less he loves what is his own. But through the desire of proving his own power, man by his own will falls down into himself as into a sort of [substitute] center. Since he, therefore, wishes to be like God, hence under no one, then as a punishment he is also driven from the center, which he himself is, down into the depths, that is, into those things wherein the beasts delight. Thus, since the likeness to God is his honor, the likeness to the beasts is his disgrace. .