Thomas Aquinas Commentary Jeremiah 33:12-13

"Thus saith Jehovah of hosts: Yet again shall there be in this place, which is waste, without man and without beast, and in all the cities thereof, a habitation of shepherds causing their flocks to lie down. In the cities of the hill-country, in the cities of the lowland, and in the cities of the South, and in the land of Benjamin, and in the places about Jerusalem, and in the cities of Judah, shall the flocks again pass under the hands of him that numbereth them, saith Jehovah." — Jeremiah 33:12-13 (ASV)

1. Here, he promises them the tranquility of peace, which he signifies by their dwelling securely in their own land: the flocks pass under the hand of him that numbers them. It is as though he were saying, “They will have such great security that they will be able to freely number their sheep.” In the most fertile meadows I shall feed them, and their pastures shall be on the highest mountains of Israel (Ezekiel 34:14).