Talmud Bavli Menachot on The Tagin (Crownlets) of the Hebrew Letters

"Rav Yehudah said in the name of Rav: When Moses ascended to the Heavenly Heights, he found the Holy One, Blessed be He, as He was sitting and attaching crowns to some of the letters of the Torah.  Moses said before Him, 'Master of the Universe, who is holding You back from giving the Torah as it is?'  God said to him, 'There is one man who is destined to exist at the end of many generations, Akiva ben Yosef is his name, and it is he who will expound upon each and ever point heaps and heaps of halachot (oral laws)'."

-- Talmud Bavli, Menachot 29b

Talmud Bavli Menachot on the Mitzvah to Write a Torah Scroll

"And Rabbi Yehoshua bar Abba said in the name of Rav Gidel, who said in the name of Rav: One who buys a Torah scroll from the market is like on who grabs a mitzvah from the market.  If he wrote it himself, Scripture considers him as if he received it personally from Mount Sinai."

-- Talmud Bavli, Menachot 30a

"And now write for yourselves this song, and teach it to the Children of Israel, place it in their mouths."

-- Deuteronomy 31:19