To emphasize the validity of the Levites' claim to the offerings and tithes of the Israelites, Moses collected a rod from the leaders of each tribe in Israel and laid the twelve rods overnight in the tent of meeting. The next morning, Aaron's rod was found to have budded and blossomed and produced ripe almonds (Numbers 17:8). The following chapter then details the distinction between Aaron's family and the rest of the Levites: while all the Levites (and only Levites) were devoted to the care of the sanctuary, charge of its interior and the altar was committed to the Aaronites alone (Numbers 18:1-7).