The title Elder is given to men who are holders of the Melchizedek Priesthood. This grants them authority to guide the Church and bestow spiritual blessings on its members. Even though an LDS man attends Elder quorums at their church, they don’t necessarily refer to each other as Elders. Instead, they will call men “Brothers” and women “Sisters”. Within the LDS Church, the only people who call themselves “Elder” are missionaries or General Authorities. Addressing missionaries as elders conveys respect to their office and service.