Instruments prepared by God to assist man in obtaining revelation and in translating languages. In the Hebrew language the words mean “lights and perfections.” The Urim and Thummim consist of two stones set in silver bows and sometimes used with a breastplate (D&C 17:1; JS—H 1:35, 42, 52). This earth will become a great Urim and Thummim in its sanctified and immortal state (D&C 130:6–9).