1)
What is the meaning of "Lo Saru Mitzvas ha'Melech"?
1.
Radak: [They did not deviate] mi'Mitzvas (from the command of ha'Melech; the prefix Mem is omitted.
2.
Malbim: "Saru" is based on the root Sorer u'Moreh; they did not defy his command.
