John Calvin on Jeremiah 20:4

Here Jeremiah explains more at large why he said that Pashur would be terror on every side, even because he and his friends would be in fear; for he would find himself overwhelmed by God’s vengeance, and would become a spectacle to all others. In short, Jeremiah means, that such would be God’s vengeance as would fill Pashur and all others with fear; for Pashur himself would be constrained to acknowledge God’s hand without being able to escape, and all others would also perceive the same. He then became a spectacle to himself and to others, because he could not, however hardened he might have been, do otherwise than feel God’s vengeance; and this became also apparent to all others.

Behold, he says, I will make thee a terror to thyself and to all thy friends; and fall shall they by the sword of their enemies, thine eyes seeing it; and all Judah will I deliver into the hand, etc. He repeats what he had said; for Pashur wished to be deemed the patron of the whole land, and especially of the city Jerusalem. As, then, he had undertaken the cause of the people, as though he was the patron and defender of them all, Jeremiah says, that all the Jews would be taken captives, and not only so, but that something more grievous was nigh at hand, for when the king of Babylon led them into exile, he would also smite them with the sword, not indeed all; but we know that he severely punished the king, his children, and the chief men, so that the lower orders on account of their obscurity alone escaped; and those of this class who did escape, because they were not noble nor renowned, were indebted to their own humble condition. It follows, —

Jeremiah 20:5

5. Moreover I will deliver all the strength of this city, and all the labours thereof, and all the precious things thereof, and all the treasures of the kings of Judah will I give into the hand of their enemies, which shall spoil them, and take them, and carry them to Babylon.

5. Et ponam totam fortitudinem urbis hujus, et omnem laborem ejus, et omnem pretiousum ejus, (vel, omnem gloriam,) et omnes thesauros regum Jehudah ponam in manum inimicorum ipsorum, et spoliabunt ipsos et tollent eos et abducent eos Babylonem.