The Actors’ Temple, a Manhattan synagogue, is turning to theatre to help make ends meet. “Recently — say, oh, during the last half-century — this temple, with a declining membership and a vanishing budget, has not been doing so well. So starting with an official opening night tomorrow, the Actors’ Temple, for the first time in its 89-year history, will be moonlighting as an Off Broadway theater. … The first show, ‘The Big Voice: God or Merman?,’ is about a Roman Catholic from Brooklyn and a Baptist from Arkansas who find spiritual solace in musical theater and each other.”