Exodus 34:32-35

32After this all the Israelites approached, and he commanded them all that the Lord had spoken to him on Mount Sinai.

33When Moses finished speaking with them, he would put a veil on his face.

34But when Moses went in before the Lord to speak with him, he would remove the veil until he came out. Then he would come out and tell the Israelites what he had been commanded.

35When the Israelites would see the face of Moses, that the skin of Moses’ face shone, Moses would put the veil on his face again, until he went in to speak with the Lord.