Deuteronomy 26:9-10

26:9 Then he brought us to this place and gave us this land, a land flowing with milk and honey. 26:10 So now, look! I have brought the first of the ground’s produce that you, Lord, have given me.” Then you must set it down before the Lord your God and worship before him.

Exodus 22:29

22:29 “Do not hold back offerings from your granaries or your vats. You must give me the firstborn of your sons.

Exodus 23:19

23:19 The first of the firstfruits of your soil you must bring to the house of the Lord your God.

“You must not cook a young goat in its mother’s milk.

Leviticus 23:10

23:10 “Speak to the Israelites and tell them, ‘When you enter the land that I am about to give to you and you gather in its harvest, then you must bring the sheaf of the first portion of your harvest to the priest,

Leviticus 23:17

23:17 From the places where you live you must bring two loaves of bread for a wave offering; they must be made from two tenths of an ephah of fine wheat flour, baked with yeast, as first fruits to the Lord.

Numbers 18:12-24

18:12 “All the best of the olive oil and all the best of the wine and of the wheat, the first fruits of these things that they give to the Lord, I have given to you. 18:13 And whatever first ripe fruit in their land they bring to the Lord will be yours; everyone who is ceremonially clean in your household may eat of it.

18:14 “Everything devoted in Israel will be yours. 18:15 The firstborn of every womb which they present to the Lord, whether human or animal, will be yours. Nevertheless, the firstborn sons you must redeem, and the firstborn males of unclean animals you must redeem. 18:16 And those that must be redeemed you are to redeem when they are a month old, according to your estimation, for five shekels of silver according to the sanctuary shekel (which is twenty gerahs). 18:17 But you must not redeem the firstborn of a cow or a sheep or a goat; they are holy. You must splash their blood on the altar and burn their fat for an offering made by fire for a pleasing aroma to the Lord. 18:18 And their meat will be yours, just as the breast and the right hip of the raised offering is yours. 18:19 All the raised offerings of the holy things that the Israelites offer to the Lord, I have given to you, and to your sons and daughters with you, as a perpetual ordinance. It is a covenant of salt forever before the Lord for you and for your descendants with you.”

Duties of the Levites

18:20 The Lord spoke to Aaron, “You will have no inheritance in their land, nor will you have any portion of property among them – I am your portion and your inheritance among the Israelites. 18:21 See, I have given the Levites all the tithes in Israel for an inheritance, for their service which they perform – the service of the tent of meeting. 18:22 No longer may the Israelites approach the tent of meeting, or else they will bear their sin and die. 18:23 But the Levites must perform the service of the tent of meeting, and they must bear their iniquity. It will be a perpetual ordinance throughout your generations that among the Israelites the Levites have no inheritance. 18:24 But I have given to the Levites for an inheritance the tithes of the Israelites that are offered to the Lord as a raised offering. That is why I said to them that among the Israelites they are to have no inheritance.”

Numbers 18:2

18:2 “Bring with you your brothers, the tribe of Levi, the tribe of your father, so that they may join with you and minister to you while you and your sons with you are before the tent of the testimony.

Numbers 31:4-10

31:4 You must send to the battle a thousand men from every tribe throughout all the tribes of Israel.” 31:5 So a thousand from every tribe, twelve thousand armed for battle in all, were provided out of the thousands of Israel.

Campaign Against the Midianites

31:6 So Moses sent them to the war, one thousand from every tribe, with Phinehas son of Eleazar the priest, who was in charge of the holy articles and the signal trumpets. 31:7 They fought against the Midianites, as the Lord commanded Moses, and they killed every male. 31:8 They killed the kings of Midian in addition to those slain – Evi, Rekem, Zur, Hur, and Reba – five Midianite kings. They also killed Balaam son of Beor with the sword.

31:9 The Israelites took the women of Midian captives along with their little ones, and took all their herds, all their flocks, and all their goods as plunder. 31:10 They burned all their towns where they lived and all their encampments.

Nehemiah 12:44-47

12:44 On that day men were appointed over the storerooms for the contributions, first fruits, and tithes, to gather into them from the fields of the cities the portions prescribed by the law for the priests and the Levites, for the people of Judah took delight in the priests and Levites who were ministering. 12:45 They performed the service of their God and the service of purification, along with the singers and gatekeepers, according to the commandment of David and his son Solomon. 12:46 For long ago, in the days of David and Asaph, there had been directors for the singers and for the songs of praise and thanks to God. 12:47 So in the days of Zerubbabel and in the days of Nehemiah, all Israel was contributing the portions for the singers and gatekeepers, according to the daily need. They also set aside the portion for the Levites, and the Levites set aside the portion for the descendants of Aaron.