Shemot 34:27-29

Orthodox Jewish Bible

²⁷ And Hashem said unto Moshe, Write thou these devarim; for according to these devarim I have cut a brit with thee and with Yisroel.

²⁸ And he was there with Hashem arba’im yom and arba’im lailah; he did neither eat lechem, nor drink mayim. And he wrote upon the Luchot the Divrei HaBrit (Words of the Covenant), the Aseres Hadevarim (Ten Commandments).

²⁹ And it came to pass, when Moshe came down from Mt. Sinai with the two Luchot HaEdut in the yad Moshe, when he came down from HaHar, that Moshe had no da’as that the ohr (skin) of his face had become radiant when he had spoken with Him.