- Union Temple is an egalitarian, inclusive Reform Jewish Congregation in Brooklyn, NY. Mission Union Temple is an egalitarian, inclusive Reform Congregation, spanning the generations. Founded in 1848, ours is the oldest Jewish congregation in Brooklyn. We are a house of worship with services that are enhanced by our strong musical program; a house of study in which adults and children can learn about our religion and our heritage; and an intimate community of mutual support for our members. We reach out to the diverse communities of Brooklyn and warmly welcome individuals and all types of families to join us. As a congregation we are dedicated to Tikkun Olan, the repairing of our world, through the pursuit of social justice and active participation in the larger Jewish and general communities. Description A diverse and lively Jewish community led by Rabbi Linda Henry Goodman. General Information Union Temple is the first Jewish congregation to have been established in all of Brooklyn and Long Island, officially founded in 1848 by a small group of German and Alsatian Jewish immigrants living in Williamsburgh. We are a member congregation of the Union of Reform Judaism, and understand our tradition as a dynamic, ever-expanding and evolving faith. We invite you to celebrate our past, share our present, and be a part of shaping our future.