Numbers 7:9

But to the sons of Kohath he gave none, because theirs was the service of the holy things, which they carried on their shoulders.

Surrounding context

7:8 and four carts and eight oxen he gave to the sons of Merari, according to their service, under the authority of Ithamar the son of Aaron the priest.

7:9 But to the sons of Kohath he gave none, because theirs was the service of the holy things, which they carried on their shoulders.

7:10 Now the leaders offered the dedication offering for the altar when it was anointed; so the leaders offered their offering before the altar.

Translation and sources