Exodus 24:9-11

Then went up Moses, and Aaron, Nadab, and Abihu, and seventy of the elders of Israel: and they saw the God of Israel; and there was under his feet as it were a paved work of sapphire stone, and as it were the very heaven for clearness. And upon the nobles of the children of Israel he laid not his hand: and they beheld God, and did eat and drink.