Numbers 7:8-10

Young's Literal Translation

⁸ and the four of the waggons and the eight of the oxen he hath given to the sons of Merari, according to their service, by the hand of Ithamar son of Aaron the priest;

⁹ and to the sons of Kohath he hath not given, for the service of the sanctuary [is] on them: on the shoulder they bear.

¹⁰ And the princes bring near the dedication of the altar in the day of its being anointed; yea, the princes bring near their offering before the altar.