Exodus 34:31

28 He was there with the LORD forty days and forty nights; he neither ate bread, nor drank water. He wrote on the tablets the words of the covenant, the ten commandments.

29 When Moses came down from Mount Sinai with the two tablets of the covenant in Moses’ hand, when he came down from the mountain, Moses didn’t know that the skin of his face shone by reason of his speaking with him.

30 When Aaron and all the children of Israel saw Moses, behold, the skin of his face shone; and they were afraid to come near him.

31 Moses called to them, and Aaron and all the rulers of the congregation returned to him; and Moses spoke to them.

32 Afterward all the children of Israel came near, and he gave them all the commandments that the LORD had spoken with him on Mount Sinai.

33 When Moses was done speaking with them, he put a veil on his face.

34 But when Moses went in before the LORD to speak with him, he took the veil off, until he came out; and he came out, and spoke to the children of Israel that which he was commanded.