I think about this frequently. Jung was highly fascinated by the Nag Hammadi Codex after it was discovered. If you haven't checked it out yet, I highly recommend it.
In the Gospel of Thomas (perhaps one of the most popular writings in the Codex), the figure of Christ describes Thelemic ideology well before Crowley's time. So much so that more than a few in my life have argued Thelema is just an updated form of Christianity. The Gospel of Thomas includes descriptions by Christ that we are to discover our own unique connection to divinity, live in relationship to that divinity, and ignore those who claim to know better. Christ calls for a very personal relationship with the divine that does not require one to practice Biblical exegesis, or that strange spell "in Jesus's Name..." that the Church so adamantly grasps to. It is no wonder the Codex was hidden at the onset of Christian imperialism.