perfection (LXX., "truth;" Vulg., "veritas"), Exodus 28:30 ; Deuteronomy 33:8 ; Judges 1:1 ; 20:18 ; 1 Samuel 14:3 1 Samuel 14:18 ; 23:9 ; 2 Sam 21:1 . What the "Urim and Thummim" were cannot be determined with any certainty. All we certainly know is that they were a certain divinely-given means by which God imparted, through the high priest, direction and counsel to Israel when these were needed. The method by which this was done can be only a matter of mere conjecture. They were apparently material objects, quite distinct from the breastplate, but something added to it after all the stones had been set in it, something in addition to the breastplate and its jewels. They may have been, as some suppose, two small images, like the teraphim (Compare Judges 17:5 ; Judges 18:14 Judges 18:17 Judges 18:20 ; Hosea 3:4 ), which were kept in the bag of the breastplate, by which, in some unknown way, the high priest could give forth his divinely imparted decision when consulted. They were probably lost at the destruction of the temple by Nebuchadnezzar. They were never seen after the return from captivity.
M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,
published by Thomas Nelson, 1897. Public Domain, copy freely.
[N] indicates this entry was also found in Nave's Topical Bible
[H] indicates this entry was also found in Hitchcock's Bible Names
[S] indicates this entry was also found in Smith's Bible Dictionary
Bibliography InformationEaston, Matthew George. "Entry for Thummim". "Easton's Bible Dictionary".