Exodus 24:1-4

1And he said unto Moses, Come up unto Yhwh, thou, and Aaron, Nadab, and Abihu, and seventy of the elders of Israel; and worship ye afar off. 2And Moses alone shall come near Yhwh: but they shall not come nigh; neither shall the people go up with him.

3And Moses came and told the people all the words of Yhwh, and all the judgments: and all the people answered with one voice, and said, All the words which Yhwh hath said will we do. 4And Moses wrote all the words of Yhwh, and rose up early in the morning, and builded an altar under the hill, and twelve pillars, according to the twelve tribes of Israel.