'Urim and Thummim' in the Bible

The governor told them that they should not eat of the most holy things [the priests’ food] until a priest stood up with Urim and Thummim [who by consulting these articles in his breastplate could determine God’s will in the matter].

The governor told them that they should not eat any of the most holy food until a priest arose with Urim and Thummim [to determine God’s will in the matter].