1 Nephi 14

Conspiracy Rising Ref. 17, 36

10. And he said unto me: Behold there are save two churches only; the one is the church of the Lamb of God, and the other is the church of the devil; wherefore, whoso belongeth not to the church of the Lamb of God belongeth to that great church, which is the mother of abominations; and she is the whore of all the earth.

There will come a time in the future when there truly are only two churches.