Nehemiah 10:34-36

34We have also cast lots—the priests, the Levites, and the people—for [contributing] the supply of wood, to bring it to the house of our God, according to our fathers’ households, at set times annually, to burn on the altar of the Lord our God, as it is written in the Law;

35and [we obligate ourselves] to bring the first fruits of our ground and the first fruits of all the fruit of every tree to the house of the Lord annually,

36as well as the firstborn of our sons and of our cattle, as is written in the Law, and the firstborn of our herds and flocks, to bring to the house of our God, for the priests who minister in the house of our God.