Thummim

The Thummim is one half of the paired oracle-objects — Urim and Thummim — placed inside the high priest's breastplate of judgment so that Israel could bring questions before Yahweh and receive a verdict. The names mean light and perfection; the texts describe the breastplate that houses them, the ephod that carries it, the priest who alone may consult them, and the lot-casting binary by which they speak, but never the objects themselves.

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