Disciple or initiate?

We have been attempting to adapt Badwe'e or Nzime Bible translations into Njyem. We find that the word we think means "disciple" in Badwe'e and in Nzime has a different meaning in Njyem: "initiated person". Some Njyem say that these groups Anya-Mekwor and Dyoo are still active among the Njyem. Others say that they are relegated to a recent but potent memory. They initiated people into their ranks and these people acquired supernatural powers but also came under complicated rules.
The new term that we are trying to use is mbun. It was proposed by a Njyem speaker in Brazzaville who sees the need to avoid miscommunication through implying that one is initiated into the ranks of a disciple of Jesus Christ, and that one acquires powers.