Very few beings really seek knowledge in this world. Mortal or immortal, few really ASK. On the contrary, they try to wring from the unknown the answers they have already shaped in their own minds.
What I did was take the Jesus of the Gospels, the Son of God, the Son of the Virgin Mary, and sought to make Him utterly believable, a vital breathing character.
You reach deep down and bring up what feels absolutely authentic to you as you move along with the book, but you don't know everything about it. You can't.