Why does it say "Pedus Shalach l'Amo"?
Malbim: Via these commands, He sent redemption to His nation. He redeemed them on condition that they guard the commands; if not, they will be slaves.
Why does it say "Tzivah l'Olam Briso"?
Malbim: This is like it said that His Bris will always be remembered via "Ko'ach Ma'asav Higid l'Amo" (verse 6). Fulfillment of the Bris is via guarding the commands - "va'Yiten Lahem Artzos Goyim...; Ba'vur Yishmeru Chukav" (105:44-45).
What will be the consequence of "Kadosh v'Nora Shmo"?
Radak: People will fear Him, and be Kedoshim, for He is Kadosh, and He sanctified them and separated them from the nations - Yuma 39a: "V'Hiskadashtem vi'Hyisem Kedoshim", "Ki Kadosh Ani Hashem Mekadishchem" (Vayikra 20:7, 21:8).
