Ray Boltz wanted to do something nice. He’d visited the mostly gay Jesus Metropolitan Community Church in Indianapolis and liked Rev. Jeff Miner, so he decided to give him a copy of his 1997 holiday recording, “A Christmas Album.” It was one of 16 albums Boltz, 55, recorded during a nearly 20-year recording career that saw the Muncie, Ind., native become one of the better-known singer/songwriters in Contemporary Christian Music, a genre born out of the Jesus Movement of the early...