Leviathan appears in biblical poetry and later religious symbolism. The vivid descriptions belong to different literary contexts and should be interpreted accordingly.
The Life of Adam and Eve is a group of related apocryphal narratives about the first humans. Its versions expand the Eden story through accounts of repentance, the Devil’s hostility, illness, burial, and hoped-for restoration.
The Nephilim appear in brief biblical passages and in later traditions about giants. Different texts should be distinguished before their accounts are combined.
Job 1–2 presents Satan in a heavenly assembly and in a dispute about Job’s righteousness. The passage should be read before later accounts of Satan’s origins are supplied.
Milton’s Paradise Lost gives Satan an influential literary characterization. His persuasive speeches must be read alongside the narrator’s account and the consequences of his actions.
The serpent in Genesis 3 persuades the woman to eat from the tree of knowledge. The chapter does not name Satan. Later texts and interpretations connect the serpent with the Devil, adding to the history of the Eden story.