Leviticus 10:6-7

6And Moses said to Aaron and to Eleazar and Ithamar his sons, a  “Do not let the hair of your heads hang loose, and do not tear your clothes, lest you die, and b  wrath come upon all the congregation; but let your brothers, the whole house of Israel, bewail the burning that the  Lord has kindled. 7 c  And do not go outside the entrance of the tent of meeting, lest you die d  for the anointing oil of the  Lord is upon you.” And they did according to the word of Moses.

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