After he drove the man out, he placed on the east side of the Garden of Eden cherubim and a flaming sword flashing back and forth to guard the way to the tree of life. God banished Adam and Eve from the Garden of Eden. They were removed from God's presence because of their sin. For just as through the disobedience of the one man the many were made sinners, so also through the obedience of the one man the many will be made righteous. Through the disobedience of Adam, we all became sinners.
Sin is like a disease that was passed down to all men.
As a result of our sinful nature, we also sinned against God. God promised a savior who would crush Satan. Jesus was the offspring of Eve who would defeat Satan at the cross. The leaders of the Jews were the offspring of Satan who plotted to kill Jesus. Satan's attempt to destroy Jesus at the cross was only temporary and seen as a strike against Jesus' heel.