Exodus 34:35 WEB

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

³⁴  But when Moses went in before Yahweh 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.

³⁵  The children of Israel saw Moses' face, that the skin of Moses' face shone: and Moses put the veil on his face again, until he went in to speak with him.