Amram was the father of Aaron and Moses. Aaron and his descendants were chosen to be in charge of all the sacred things. They served the LORD by offering sacrifices to him and by blessing the people in his name.
Whenever you kill any of your cattle, sheep, or goats as sacrifices to me, you must do it at the entrance to the sacred tent. If you don't, you will be guilty of pouring out blood, and you will no longer belong to the community of Israel.