Exodus 34:32-35

32Afterward all the people of Israel came near, and he commanded them all that the Lord had spoken with him in Mount Sinai.

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

34Whenever Moses went in before the Lord to speak with him, he would remove the veil, until he came out. And when he came out and told the people of Israel what he was commanded,

35the people of Israel would see the face of Moses, that the skin of Moses' face was shining. And Moses would put the veil over his face again, until he went in to speak with him.