Throughout Lord of the Flies, Golding examines the true nature of mankind without society's rules, regulations, or restrictions by illustrating how a group of civilized British schoolboys rapidly transform into savages on the uninhabited tropical island. Religion also explores the nature of mankind and offers a set of rules to guide humans throughout their lives. Christianity has its theories regarding the nature of good vs. evil, provides a set of rules to live by, and claims that humans are inherently sinful. There are numerous verses in the Bible commenting on mankind's sinful nature in both the Old and New Testaments. For example, Psalm 51:5 states, "Behold, I was shapen in iniquity; and in sin did my mother conceive me" (KJV). Golding's primary message corresponds to the Christian ideology that mankind is inherently wicked.
In addition to Golding's primary theme regarding mankind's wickedness, his novel also explores the theme of good vs. evil. Therefore, Golding's use of religious allegories highlights his themes and coincides with his exploration of human nature. There are numerous religious allegories throughout the novel. The island can allegorically represent the Garden of Eden, while the dead paratrooper's descent can represent Satan's fall from heaven. Simon is depicted as a Christ figure, and the Lord of the Flies allegorically represents the devil. Their meeting in the secluded spot in the forest can also allegorically represent Satan tempting Jesus in the wilderness.