What is the significance of "va'Yarem Keren l'Amo"?
Radak: When He will raise the horn of His nation, He will show the entire world that all is via His strength. He took them out of Galus, gathered them from the nations, and raised their horn over all nations.
Malbim: Yisrael rose from the lowly world to ascend Har Hashem. They ascended to the top of the ladder and approached Him.
Who are "Kol Chasidav"?
Radak: They are "Bnei Yisrael Am Kerovo."
Malbim: They are those who came close to Hashem.
Why does it conclude "Am Kerovo Hallelukah"?
Malbim: The Chasidim praise and say that Yisrael are His close nation. The praise of His Chasidim will ascend with the first who praised above "Halleluhu ba'Meromim" (1), for also they ascended above and they are His close nation.
