Before Adam and Eve sinned, they were two happy, naked vegetarians. Immediately after eating the fruit God commanded them not to eat, they were naked and ashamed. In an effort to cover their shame, they sewed fig leaves together. When God found them in the garden, He slaughtered the first animal in history to make skins to cover Adam and Eve.
In the first sin we see man making an effort to cover his own transgression. God makes it clear that man’s efforts are not sufficient to cover sin. We also see that the shedding of blood is required to forgive sins (see Heb. 9:22).
The first animals that were ever butchered were killed by God Himself. This is our first shadowy picture of Jesus Christ, shedding His blood for the sins of mankind.
Adapted from Don’t Stub Your Toeby Todd Friel
Genesis 3:21Also for Adam and his wife the Lord God made tunics of skin, and clothed them.