Richard Roberts emphasizes that man was tempted by the devil in the Garden of Eden and ate of the tree of knowledge of good and evil. Man listened to the devil, rebelled against God, and lost his relationship with Him. Thus sin entered the world by one man. Because that one man is part of the whole, sin was passed on to all of us. Through Adam, sin was transmitted into his offspring, so every person is born with the seed of sin in his heart.