Numbers 7:1-11

1 It happened on the day that Moshe had finished setting up the tabernacle, and had anointed it and sanctified it, with all its furniture, and the altar with all its vessels, and had anointed and sanctified them;
2 that the princes of Yisra'el, the heads of their fathers' houses, offered. These were the princes of the tribes. These are they who were over those who were numbered:
3 and they brought their offering before the LORD, six covered wagons, and twelve oxen; a wagon for every two of the princes, and for each one an ox: and they presented them before the tabernacle.
4 The LORD spoke to Moshe, saying,
5 "Accept these from them, that they may be used in doing the service of the Tent of Meeting; and you shall give them to the Levites, to every man according to his service."
6 Moshe took the wagons and the oxen, and gave them to the Levites.
7 He gave two wagons and four oxen to the sons of Gershon, according to their service:
8 and he gave four wagons and eight oxen to the sons of Merari, according to their service, under the direction of Itamar the son of Aharon the Kohen.
9 But to the sons of Kehat he gave none, because the service of the sanctuary belonged to them; they carried it on their shoulders.
10 The princes gave offerings for the dedication of the altar in the day that it was anointed, even the princes gave their offerings before the altar.
11 The LORD said to Moshe, "They shall offer their offering, each prince on his day, for the dedication of the altar."