Numbers 7:3-9

3 They brought as their gifts before the Lord six covered carts and twelve oxen—an ox from each leader and a cart from every two. These they presented before the tabernacle.

4 The Lord said to Moses,

5 “Accept these from them, that they may be used in the work at the Tent of Meeting. Give them to the Levites as each man’s work requires.”

6 So Moses took the carts and oxen and gave them to the Levites.

7 He gave two carts and four oxen to the Gershonites, as their work required,

8 and he gave four carts and eight oxen to the Merarites, as their work required. They were all under the direction of Ithamar son of Aaron, the priest.

9 But Moses did not give any to the Kohathites, because they were to carry on their shoulders the holy things, for which they were responsible.