Exodus 24:1, 9, 12

And he said unto Moses, Come up unto the LORD, thou, and Aaron, Nadab, and Abihu, and seventy of the elders of Israel; and worship ye afar off.

Then went up Moses, and Aaron, Nadab, and Abihu, and seventy of the elders of Israel

And the LORD said unto Moses, Come up to me into the mount, and be there: and I will give thee tables of stone, and a law, and commandments which I have written; that thou mayest teach them.