Place the Urim and Thummim in the breastpiece for decisions, so that they will also be over Aaron’s heart whenever he comes before the Lord. Aaron will continually carry the means of decisions for the Israelites over his heart before the Lord.

Then he put the breastpiece on him and placed the Urim and Thummim into the breastpiece.

He said about Levi:

Your Thummim and Urim belong to Your faithful one;
You tested him at Massah
and contended with him at the waters of Meribah.

The governor ordered them not to eat the most holy things until there was a priest who could consult the Urim and Thummim.

The governor ordered them not to eat the most holy things until there was a priest who could consult the Urim and Thummim.