Charles Ellicott Commentary Jeremiah 50:26

"Come against her from the utmost border; open her store-houses; cast her up as heaps, and destroy her utterly; let nothing of her be left." — Jeremiah 50:26 (ASV)

Open her storehouses. — The noun is not found elsewhere. Probably granaries would be a better rendering. The word for “heaps” is used in Song of Solomon 7:2 and Ruth 3:7 for “heaps of corn,” and this is probably its meaning here. In Nehemiah 4:2, however, it is used of heaps of rubbish. The stored-up provisions of the captured city are to be piled up in its open places, as men pile the sheaves of corn after harvest, and burned (for “destroy” read devote to destruction), as had been done, for example, in the capture of Jericho and other cities (Joshua 6:24; Joshua 11:12–13).

Let nothing of her be left. — Literally, let there be no remnant, as in marked contrast with the “remnant” of Israel (Jeremiah 50:20).