Genesis chapter three is often entitled, "The Fall." The serpent approached the wife of Adam and asked, "Has God said, you shall not eat of every tree of the garden?" She said, "We can eat from all the trees except for the one in the middle of the garden, neither shall we touch it, lest we die." The serpent responded that they won't die, but instead their eyes will be opened and they will be as gods, and they will know the difference between good and evil. She ate, and gave some to her husband who was with her, and when he ate, their eyes were opened, but they found they were not like gods, they were naked and ashamed so they covered themselves with leaves. They hid from the Lord God when they heard His voice. He asked for them, and found out what happened. That once beautiful union has now been severed, both with humanity and God, and with each other. God placed their judgments upon them, and in verse 15, God promised the serpent that one from the seed of Eve will come and bruise his head. This is the first gospel proclamation, that God will send One from the seed of Mary, whom the serpent will bruise when Jesus dies on the cross, but ultimately Jesus will defeat the serpent when He overcomes death and ascends at the right hand of God. After the fall, Eve receives her name, and the Lord God covers them with skins from what is believed to be the first sacrifice given to cover man's sin. Adam and Eve are kicked out of the garden in Eden, and cherubim keep the way of the tree of life.
