Dan - i. e. the northern boundary of the land.
His strong ones - i. e., “his war-horses.”
Related Commentaries of Jeremiah 8:16
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 alld that is in it; the city, and those that dwell therein.