User blog comment:ImperiexSeed/The oldest being, archangel or leviathan?/@comment-5110811-20150606161023/@comment-3045936-20150610133740

I don't know but this is my theory. That after God created Heaven which is his oldest creation, confirmed anyway. God created the Leviathans using designs similar to the darkness. Maybe to battle it, but as the Leviathans ended up as monsters he creates Purgatory to house these failed creations. And he just couldn't bring himself to destroy them. Which later resulted in Eve being born from the remains of the Leviathans that fought and killed each other in Purgatory. Than to battle the Darkness he created four beings of light like himself the Archangels. As he learned that to battle darkness you need light, not more darkness like the Leviathans. Again theory.