Charles Ellicott Commentary Micah 2:12-13

"I will surely assemble, O Jacob, all of thee; I will surely gather the remnant of Israel; I will put them together as the sheep of Bozrah, as a flock in the midst of their pasture; they shall make great noise by reason of [the multitude of] men. The breaker is gone up before them: they have broken forth and passed on to the gate, and are gone out thereat; and their king is passed on before them, and Jehovah at the head of them." — Micah 2:12-13 (ASV)

I will surely assemble ...—With a characteristic abruptness Micah turns from the height of sin and punishment to the height of the deliverance—from Ebal to Gerizim. Israel and the remnant will be gathered together as a considerable flock in the luxuriant pastures of Idumean Bozrah. The Breaker will go before them as their Saviour and Deliverer, indeed, even Jehovah at their head. The return from captivity symbolised the eventual restoration of the people of God into His everlasting kingdom.