Albert Barnes Commentary Jeremiah 46:20

"Egypt is a very fair heifer; [but] destruction out of the north is come, it is come." — Jeremiah 46:20 (ASV)

Is like - Or, is. Her god was the steer Apis (Jeremiah 46:15), and she is the spouse.

But destruction comes; it comes out of the north - More probably, “a gadfly from the north has come upon her.” This is a sort of insect which stings the oxen and drives them to madness. Compare (Isaiah 7:18).