The Ophite Diagrams are ritual and esoteric diagrams used by the Ophite sect of Gnosticism, who revered the serpent from the Garden of Eden as a symbol of wisdom, which the malevolent Demiurge tried to hide from Adam and Eve.
Celsus and his opponent Origen (Contra Celsum, vi. §§ 24-38) both describe the diagrams, though not in the same way. Celsus describes them as ten separate circles, circumscribed by one circle, the world-soul, Leviathan, divided by a thick black line, Tartarus, together with a square, with words said at the gates of Paradise. Further to this, the Ophites are said by Celsus to add the sayings of prophets, and circles upon circles, with some things written within the two great cosmological circles representing God the Father, and God the Son.