Exodus 24:3-5

Complete Jewish Bible

³ Moshe came and told the people everything Adonai had said, including all the rulings. The people answered with one voice: “We will obey every word Adonai has spoken.”

⁴ Moshe wrote down all the words of Adonai. He rose early in the morning, built an altar at the base of the mountain and set upright twelve large stones to represent the twelve tribes of Isra’el. ⁵ He sent the young men of the people of Isra’el to offer burnt offerings and sacrifice peace offerings of oxen to Adonai.