Urim and Thummim (Latter Day Saints)

In the Latter Day Saint movement, the Urim and Thummim (/ˈjuːr.ɪm/ and /ˈθʌm.ɪm/) (also called Interpreters) usually refers to a set of seer stones bound by silver bows into a set of spectacles, that movement founder Joseph Smith said he found buried in the hill Cumorah with the golden plates.

In 1823, Smith said that an angel Moroni told him of the existence, with the plates, of "two stones in silver bows" fastened to a breastplate, which the angel called the Urim and Thummim and which he said God had prepared for translating the plates. Smith's mother, Lucy Mack Smith, described them as crystal-like "two smooth three-cornered diamonds."Oliver Cowdery said the stones were "transparent". Smith and his early Mormon contemporaries seem to have used the terms "seer stone" and "Urim and Thummim" interchangeably. Although Smith always referred to the Book of Mormon "interpreters" as the Urim and Thummim, he may or may not have intended to make a distinction between that device and the seer stones that he used in receiving revelations. The LDS Church has suggested that Smith and his contemporaries "seem to have understood the term more as a descriptive category of instruments for obtaining divine revelations and less as the name of a specific instrument".

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