12. AT THAT TIME HASHEM SAID TO ME: HEW FOR YOURSELF... (10:1).

Halachah: When a Jew betroths a woman, who has to pay for the writing of the document of betrothal? Our Rabbis have learnt thus: Documents of betrothal and marriage are written only with the consent of the two parties, and the bridegroom pays the fee.

And this we learn from G-d from His betrothal of Yisrael at Sinai, as it is written, "And Hashem said to Moshe: Go to the people and betroth them to-day and to-morrow" (Shemot  19:10).

And who wrote this document? Moshe.

Where do we know this? For it is said, "And Moshe wrote this law" (Devarim 31:9).

And what reward did G-d give him? A lustrous countenance, as it is written, "That Moshe knew not that the skin of his face sent forth beams" (Shemot 34:29).

To what time does "While He talked with him" (ib.) refer?  Resh Lakish said: When Moshe wrote the law.