Devices to ascertain the will of God. Urim and Thummim were consulted by the chief priest (Num. 27: 21; 1 Sam. 14: 41; 28: 6), but they fell into disuse. They were worn in a pouch on the ephod garment (Exod. 28: 30).
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"Thummim." In A Dictionary of the Bible. Ed. W. R. F. Browning. Oxford Biblical Studies Online. Jan 31, 2015. <http://www.oxfordbiblicalcstudies.com/article/opr/t94/e1909>.
"Thummim." In A Dictionary of the Bible. , edited by W. R. F. Browning. Oxford Biblical Studies Online, http://www.oxfordbiblicalcstudies.com/article/opr/t94/e1909 (accessed Jan 31, 2015).