Now the law says that those from the tribe of Levi who become priests must get a tenth from their own people, even though they and their people are both from the family of Abraham.
But, Aaron, only you and your sons may serve as priests. You are the only ones who can go near the altar or behind the curtain into the Most Holy Place. I am giving you a gift—your service as a priest. Anyone else who tries to come too close must be killed.”
God said to him, “I am God All-Powerful, and I give you this blessing: Have many children and grow into a great nation. Other nations and other kings will come out of you.
“Every third year is the Year of Tithes. In that year, you must give one-tenth of your harvest to the Levites, to the foreigners living in your country, and to the widows and orphans. Then they will have plenty to eat in every city.