Sh'mot (Exo) 34:29-31

When Moshe came down from Mount Sinai with the two tablets of the testimony in his hand, he didn’t realize that the skin of his face was sending out rays of light as a result of his talking with [ADONAI]. When Aharon and the people of Isra’el saw Moshe, the skin of his face was shining; and they were afraid to approach him. But Moshe called to them; then Aharon and all the community leaders came back to him, and Moshe spoke to them.