Lord of the Flies resembles a whole bunch of Bible stories, 3 of which include: Lucifer,and the angels who he is the 'chief' of, plot to override and replace God by creating an army, but they loose, and then are thrown into hell for all of eternity; Adam and Eve, who are two innocent perfect beings placed in the garden of Eden and given the opportunity to eat any fruit except that of the Tree of the Knowledge of Good and Evil, are tempted by the serpent and eat the fruit thus creating the fall from grace, and the longing to return to the natural state of grace and innocence embodied in the paradise of the Garden of Eden; And finally, Cain and Abel, two brothers that sacrifice the best of their crop and lamb to God as an offering, but when only the crop is accepted Cain kills Abel.
The archetypes in the Lucifer story such as the army of angels, suggest (as in the Lord of the Flies) the savages who were once good or angelic, and are now following the 'shadows' all the way to hell without really realizing it. The serpent, as in the Adam and Eve story, was suggested quite a few times in the book as the invisible force of temptation slithering out of the bushes, and holding up their notions like a clasp. The sacrifices in the Cain and Able story are almost directly illustrated in the book as the pig's head, or as Simon, or as almost Ralph. All sacrifices to the 'beast' who they didn't want to bother them, just like the brothers lived in healthy fear of God and didn't want him to inflict any kind of punishment for any reason.
Lucifer was the protagonist at one point in his story, being the head angel in all of Heaven, but somehow overcame all of that and switched roles to the antagonist, and thus became the figurehead of all evil in the universe. Adam and Eve most clearly and literally loose their innocence after eating the fruit from the tree they were forbidden to touch, and this is no differently interpreted than Ralph loosing his innocence by listening to Jack. Cain and Able start out as servants of God living in fear and humility, and then Cain is overcome with jealousy and takes it out on his brother, which is no different than Jack hating the fact that Ralph is picked to be chief of all the boys and wants to 'hunt' him.