Neh 10:28-39 : 28 And the rest of the people, the priests, the Levites, the gatekeepers, the singers, the Nethinims, and all those who had separated themselves from the people of the lands to the law of God, their wives, their sons, and their daughters, everyone having knowledge and understanding;
29 They joined with their brethren, their nobles, and entered into a curse and into an oath, to walk in God's law, which was given by Moses the servant of God, and to observe and do all the commandments of the LORD our Lord, and His judgments and His statutes;
30 And that we would not give our daughters to the people of the land, nor take their daughters for our sons:
31 And if the people of the land bring goods or any food on the Sabbath day to sell, that we would not buy it from them on the Sabbath, or on the holy day: and that we would forgo the seventh year and the exaction of every debt.
32 Also we made ordinances for us, to charge ourselves yearly with the third part of a shekel for the service of the house of our God;
33 For the showbread, for the continual grain offering, and for the continual burnt offering, of the Sabbaths, of the new moons, for the set feasts, and for the holy things, and for the sin offerings to make atonement for Israel, and for all the work of the house of our God.
34 And we cast the lots among the priests, the Levites, and the people, for the wood offering, to bring it into the house of our God, according to the houses of our fathers, at the times appointed year by year, to burn on the altar of the LORD our God, as it is written in the law:
35 And to bring the firstfruits of our ground and the firstfruits of all fruit of all trees, year by year, to the house of the LORD:
36 Also the firstborn of our sons and of our cattle, as it is written in the law, and the firstlings of our herds and of our flocks, to bring to the house of our God, to the priests who minister in the house of our God:
37 And that we should bring the firstfruits of our dough, and our offerings, and the fruit of all kinds of trees, of wine and of oil, to the priests, to the chambers of the house of our God; and the tithes of our ground to the Levites, that the same Levites might have the tithes in all the cities of our tillage.
38 And the priest, the son of Aaron, shall be with the Levites when the Levites take tithes: and the Levites shall bring up the tithe of the tithes to the house of our God, to the chambers, into the treasure house.
39 For the children of Israel and the children of Levi shall bring the offering of the grain, of the new wine, and the oil, to the chambers, where are the vessels of the sanctuary, and the priests who minister, and the gatekeepers, and the singers: and we will not forsake the house of our God.