Exodus 24:1-2, 12

Now He said to Moses, “Come up to the LORD, you and Aaron, Nadab and Abihu, and seventy of the elders of Israel, and worship from afar. And Moses alone shall come near the LORD, but they shall not come near; nor shall the people go up with him.”

Then the LORD said to Moses, “Come up to Me on the mountain and be there; and I will give you tablets of stone, and the law and commandments which I have written, that you may teach them.”