Exodus 34:32-35

32After this, all the Israelites came near to Moses. He told them all the commands that the Lord had given to him on Sinai mountain.

33When Moses had finished speaking to the people, he covered his face with a thin cloth.

34But when he went into the special tent to speak with the Lord, he would remove the cloth. When he came out again, he would tell God's commands to the Israelites.

35They could see that his face was shining. So Moses would put the thin cloth over his face again. The cloth would stay on his face until he went into the special tent again to speak with the Lord.