Jewish congregations are sometimes called synagogues and sometimes called temples. Many Reform congregations use the latter term, while Orthodox and many Conservative Jews believe the word temple can refer only to the ancient Temple in Jerusalem, which they hope will one day be rebuilt in the messianic age. Do not call a Jewish congregation a temple unless it uses that word in its name. Jewish congregations are autonomous, with no hierarchies controlling their activities. The only formal titles used are rabbi for the spiritual leader of a congregation and cantor for the person who leads the congregation in song. Capitalize these titles before a person’s full name on first reference. Use only the last name on second reference. See Judaism.