Now the law says that those in the tribe of Levi who become priests must collect a tenth from the people—their own people—even though the priests and the people are from the family of Abraham.
“Tell your brother Aaron to come to you, along with his sons Nadab, Abihu, Eleazar, and Ithamar. Separate them from the other Israelites to serve me as priests.
But only you and your sons may serve as priests. Only you may serve at the altar or go behind the curtain. I am giving you this gift of serving as a priest, and anyone else who comes near the Holy Place will be put to death.”
Bring a tenth of all your harvest the third year (the year to give a tenth of your harvest). Give it to the Levites, foreigners, orphans, and widows so that they may eat in your towns and be full.