1)
What is the consequence of Hashem being to them Elokim?
1.
Malbim: They will accept on themselves Ol Malchus Shamayim, and Malchus Hashem will be revealed to the point that He will be to them Elokim.
2)
What do we learn from "v'David Avdi Nasi b'Socham"?
1.
Malbim: He will rise from the level of shepherd to Nasi ? he will be Melech ha'Mashi'ach.
3)
What do we learn from "Ani Hashem Dibarti"?
1.
Malbim: I already said this via Nevi'im who prophesized about Mashi'ach ? "v'Yatza Choter mi'Geza Yishai" (Yeshayah 11:1).