C. F. Keil and Franz Delitzsch on Jeremiah 46:10

Jer 46:10

This formidable army shall perish; for the day of the battle is the day of the Lord of hosts, on which He will take vengeance upon His enemies. Among these enemies are the Egyptians, who have grievously sinned against Israel, the people of the Lord, not merely of late, by making war upon and killing King Josiah, by carrying away Jehoahaz, and making Jehoiakim his vassal, but also from the earliest times. For this, Egypt is now to be brought low. The sword shall devour and be refreshed by drinking the blood of the Egyptians. For the Lord is preparing for a slaying of sacrifices (זבח) in the north, at the Euphrates. Isa 34:6 forms the basis of these words.