And the Lord spake unto Moses Though Aaron is not mentioned here, he was concerned in taking the sum of the Gershonites, as well as of the Kohathites, as appears from ( Numbers 4:41 ) ;
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Do this for them so that they may live and not die when they come near the most holy objects: Aaron and his sons are to go in and assign each man his task and transportation duty.
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The Kohathites are not to go in and look at the holy objects, even for a moment, or they will die."