Commentaries
46:13-28 Those who encroached on others, shall now be themselves encroached on. Egypt is now like a very fair heifer, not accustomed to the yoke of subjection; but destruction comes out of the north: the Chaldeans shall come. Comfort and peace are spoken to the Israel of God, designed to encourage them when the judgments of God were abroad among the nations. He will be with them, and only correct them in measure; and will not punish them with everlasting destruction from his presence.
21. Translate, "Also her hired men (mercenary soldiers, Jer 46:9, 16), who are in the midst of her like fatted bullocks, even they also are turned back," that is, shall turn their backs to flee. The same image, "heifer … bullocks" (Jer 46:20, 21), is applied to Egypt's foreign mercenaries, as to herself. Pampered with the luxuries of Egypt, they become as enervated for battle as the natives themselves.