John Calvin on Jeremiah 8:15

He explains his meaning more clearly in this verse, — that the Jews in vain flattered themselves, while they entertained vain hopes. He then says that there was no reason for them to deceive themselves; for were they to promise themselves peace a hundred times, ruin would still be nigh them, and that though they hoped for a time of healing, terror would assail them. We hence see that in the last verse his purpose was to shew how foolish the people were, who thought that they would be safe by means of the remedies which seemed to be at hand, though they despised God’s judgment. It follows —

Jeremiah 8:16

16. The snorting of his horses was heard from Dan: the whole land trembled at the sound of the neighing of his strong ones; for they are come, and have devoured the land, and all that is in it; the city, and those that dwell therein.

16. A Dan auditus est fremitus equorum ejus, a voce hinnituum robustorum ejus tremefacta est (vel, contremuit) tota terra; quia venient (nam copula hic resolvi debet in causalem particulam) et comedent terram et plenitudinem (vel, copiam) ejus, urbem et habitatores ejus.