Ben Ish Chai: What does it mean to be a holy nation?
Ohr HaChaim: Why didn't anyone else before Yitro think of having subordinate judges! Why is Yitro given the honor of having the Parsha of Matan Torah bear his name?
The Beit HaLevi: The Rambam says one can't accept upon themselves a limitless obligation (e.g. I will do whatever you say). How then can Bnei Yisrael say נעשה ונשמע?