How will they seek Hashem with their cattle and flock?
Rashi: These are their Korbanos. Radak ? Shevet Yehudah will return to Avodas Hashem in the Beis ha'Mikdash. This was in the days of Yoshiyah, when they eradicated idolatry, returned to serve Hashem and did Pesach ? "Ki Lo Na'asah ka'Pesach ha'Zeh" (Melachim II, 23:22).
Malbim: Then, there will not be guards to prevent the nation from going to Yerushalayim. Just the contrary, they will go to seek Hashem, with cattle and flock to offer in the Mikdash!
What is the meaning of "Chalatz"?
Rashi: It is removed, like "v'Kach Lecha Es Chalitzaso" (Shmuel II, 2:21) ? clothes that one removes from them.
Radak: It is separated and departed from them. It is Po'el Omed (the action applies only to the subject). This is like "v'Chaltzah Na'alo" (Devarim 25:9).
What is the reason "v'Lo Yimtza'u Chalatz Mehem"?
Radak: The decree was already made ? "Ach Lo Shav Hashem me'Charon Apo ha'Gadol Asher Charah Apo bi'Yhudah; ? Es Yehudah Asir me'Al Panai Ka'asher Hasirosi Es Yisrael" (Melachim II, 23:26-27).
Malbim: They will not find Hashem, for He already separated and distanced from them. They will not find Him outside via Korbanos, only inside the heart of the nation and in their Nefashos. That will be His dwelling when they sanctify and go in His Mitzvos ? "v'Shachanti b'Socham" (Shemos 25:8)