Шмот 34:29 Комментарий: Rashi, Chizkuni, Or HaChaim & Rashbam

וַיְהִ֗י בְּרֶ֤דֶת מֹשֶׁה֙ מֵהַ֣ר סִינַ֔י וּשְׁנֵ֨י לֻחֹ֤ת הָֽעֵדֻת֙ בְּיַד־מֹשֶׁ֔ה בְּרִדְתּ֖וֹ מִן־הָהָ֑ר וּמֹשֶׁ֣ה לֹֽא־יָדַ֗ע כִּ֥י קָרַ֛ן ע֥וֹר פָּנָ֖יו בְּדַבְּר֥וֹ אִתּֽוֹ׃

И было, когда Моисей сошел с горы Синай с двумя таблицами свидетельства в Моисее'рука, когда он спустился с горы, что Моисей не знал, что кожа его лица посылала вперед, пока он говорил с ним.

Rashi

ויהי ברדת משה AND IT CAME TO PASS WHEN MOSES WENT DOWN [FROM MOUNT SINAI] — when he brought the second tablets on the Day of Atonement.

Chizkuni

ויהי ברדת משה, “it happened that when Moses was descending, etc.” This was on a Tuesday the tenth day of Tishrey, after Moses having been on the Mountain for the third time for forty days;

Or HaChaim

ויהי ברדת משה, "It occurred while Moses descended," The Torah uses the word ויהי which portends something painful because all the righteous people in the camp of the Israelites were "burned" when they observed that Moses' face emitted rays of light.

Rashi

כי קרן עור פניו THAT THE SKIN OF HIS FACE BEAMED — קרן is an expression connected with the word קרנים “horns”, and the phrase, קרן אור, the light-“horned” , is used here because light radiates from a point and projects Like a horn. And whence was Moses privileged to have the rays of glory? Our Rabbis said that they originated at the time when he was in the cave, for the Holy One, blessed be He, then put His hand upon his face, as it is said, (Exodus 33:22) “And I will shelter thee with My hand” (Midrash Tanchuma, Ki Tisa 37).