Join See also Cleave; Unite wo unto them who join house to house, 2 Ne. 15:8 (Isa. 5:8). every one who is joined to wicked shall fall by sword, 2 Ne. 23:15. those who desire to take upon themselves name of Christ are baptized and join churches of God, Mosiah 25:23 (Alma 4:4; Hel. 3:24). Joseph Smith is told not to join any church, JS—H 1:18–20.