Ezekiel 44:23-24

23 aThey shall teach my people the difference between the holy and the common, and bshow them how to distinguish between the unclean and the clean. 24 cIn a dispute, they shall act as judges, and they shall judge it according to my judgments. They shall keep my laws and my statutes in all my appointed feasts, and dthey shall keep my Sabbaths holy.
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