The Race for God by Brian Herbert

Who needs Heaven?

God, it turns out, lives on the planet Tananius-Ofo in the distant galaxy 722C12009. And now, after countless millennia, He’s invited us to come visit Him.

Not everybody, mind you. Just an odd assortment of heathens, heretics, pantheists, perverts, and true believers of every sect and creed—all crammed into a single white spaceship piloted by a slightly crazed biocomputer. Each pilgrim is determined to be the first to reach God and learn His secrets . . .

If they don’t all kill each other on the way there.