John Calvin on Jeremiah 51:4

HE proceeds with what we began yesterday to explain, — that the time was nigh when God would take vengeance on the Babylonians. As, then, this could not be without great destruction in a city so very populous, and as it could not be overthrown except calamity extended itself through the whole country, hence, he says, that though Babylon should prepare great and powerful armies, it would yet be in vain, because they shall fall, he says, wounded everywhere in the land; and then he adds, and pierced through in her streets By these words he means, that the Chaldeans would be slain not only in the open fields, but also in the midst of the city. he afterwards adds, —

Jeremiah 51:5

5. For Israel hath not been forsaken, nor Judah of his God, of the LORD of hosts; though their land was filled with sin against the Holy One of Israel.

5. Quoniam non viduatus est Israel, et Jehudah a Deo suo, a Jehova exercituum; quin potius (eadem est particula כי causalis, quae tamen hic phes aliquid exprimit, ergo quin potius) terra ipsorum plena est peccato propter sanctum Israel.