Exodus 24:1-3

1Then he said to Moses, “Go up to the Lord, you and Aaron, Nadab, and Abihu, and seventy of Israel’s elders, and bow in worship at a distance.

2Moses alone is to approach the Lord, but the others are not to approach, and the people are not to go up with him.”

3Moses came and told the people all the commands of the Lord and all the ordinances. Then all the people responded with a single voice, “We will do everything that the Lord has commanded.”