Exodus 24:3-5

Lexham English Bible

³ And Moses came, and he told the people all the words of Yahweh and all the regulations. And all the people answered with one voice, and they said, “All the words that Yahweh has spoken we will do.”

⁴ And Moses wrote all the words of Yahweh, and he rose early in the morning, and he built an altar at the base of the mountain and set up twelve memorial stones for the twelve tribes of Israel. ⁵ And he sent young men from the Israelites,^[a] and they offered burnt offerings, and they sacrificed sacrifices as fellowship offerings to Yahweh using bulls.