Exodus 24:1-6 WEB

1 He said to Moses, "Come up to Yahweh, you, and Aaron, Nadab, and Abihu, and seventy of the elders of Israel; and worship from a distance.
2 Moses alone shall come near to Yahweh, but they shall not come near, neither shall the people go up with him."
3 Moses came and told the people all the words of Yahweh, and all the ordinances; and all the people answered with one voice, and said, "All the words which Yahweh has spoken will we do."
4 Moses wrote all the words of Yahweh, and rose up early in the morning, and built an altar under the mountain, and twelve pillars for the twelve tribes of Israel.
5 He sent young men of the children of Israel, who offered burnt offerings and sacrificed peace-offerings of oxen to Yahweh.
6 Moses took half of the blood and put it in basins, and half of the blood he sprinkled on the altar.