1)
What did they not heed?
1.
Radak: Divrei ha'Bris - the curses, which are a stipulation of the Bris, if they will not heed.
2.
Malbim: They were Mevatel the Torah passively; they did not want to fulfill Mitzvos.
2)
What is "Kol Divrei ha'Bris"?
1.
Rashi: It is the curses in the Bris, for things that I commanded not to do.
3)
What is the meaning of "Asher Tzivisi La'asos"?
1.
Radak: I commanded to fulfill My words, and to fulfill the Bris. This includes Aseh and Lo Sa'aseh. Fulfilling the Bris is called Ma'aseh.
2.
Malbim: Refer to 11:8:1:2.
