Numbers 7:1-3

When Moses finished setting up the tabernacle, he anointed and consecrated it and all its furnishings. He also anointed and consecrated the altar and all its utensils. Then the leaders of Israel, the heads of families who were the tribal leaders in charge of those who were counted, made offerings. 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.