1)
Who should praise Shem Hashem?
1.
Radak: All the Elyonim mentioned above.
2)
How should they praise Shem Hashem?
1.
Radak: They should admit that He is Master over them. Even though they are elevated, He is elevated over them.
3)
What do we learn from "Ki Hu Tzivah v'Nivra'u"?
1.
Malbim: In Shamayim there was only Beri'ah. In the land there was also Yetzirah and Asiyah. Beri'ah is creation Yesh from Ayin (nothingness). Yetzirah is giving form - Yesh from Yesh, e.g. the dry land. Asiyah finishes the matter, e.g. making vegetation. It says "Borei ha'Shamayim