1)
What voice of Todah will come out?
1.
Radak: The voice of thanks, for all the good that Hashem will give to them.
2.
Malbim: It is thanks for the miracles that were done for them.
2)
What is the meaning of "v'Hichbadtim"?
1.
Rashi: They will be a great nation. Radak - this is like v'Hirbisim. The same applies to "Yichbedu Vanav v'Lo Yada" (Iyov 14:21).
2.
Malbim: I will give to them honor and authority.
3)
What is the meaning of "v'Lo Yitz'aru"?
1.
Rashi: They will not be diminished. Radak - the matter is repeated [in different words] to strengthen it.
2.
Radak citing Targum Yonasan: They will not be weak.