Exodus 34:29-33

29As Moses descended from Mount Sinai — with the two tablets of the testimony in his hands as he descended the mountain — he did not realize that the skin of his face shone as a result of his speaking with the Lord.

30When Aaron and all the Israelites saw Moses, the skin of his face shone! They were afraid to come near him.

31But Moses called out to them, so Aaron and all the leaders of the community returned to him, and Moses spoke to them.

32Afterward all the Israelites came near, and he commanded them to do everything the Lord had told him on Mount Sinai.

33When Moses had finished speaking with them, he put a veil over his face.