Exodus 24:1-2, 12

Then the LORD instructed Moses: “Come up here to me, and bring along Aaron, Nadab, Abihu, and seventy of Israel’s elders. All of you must worship from a distance. Only Moses is allowed to come near to the LORD. The others must not come near, and none of the other people are allowed to climb up the mountain with him.”

Then the LORD said to Moses, “Come up to me on the mountain. Stay there, and I will give you the tablets of stone on which I have inscribed the instructions and commands so you can teach the people.”