ועתה כתבו לכם את השירה הזאת
Hashem commanded Moshe Rabbeinu to write the Torah and teach it to the nation. The Torah is referred to here as a shirah, song. (Alternatively, shirah applies to Shiras Haazinu.) Writing the Torah is the last (613th) mitzvah, for the climax of all the mitzvos is their redactment followed by teaching and studying. This comes across as enigmatic. We would think that writing the Torah should be the first mitzvah. It is almost as if a child goes to school, studies all year, and, at the end of the year, receives a textbook. Should it not be the other way…
