RobH_en_tn/mic/04/12.md

for he has gathered them like bundles of grain prepared for the threshing floor

The writer speaks of Yahweh being ready to destroy the nations as if Yahweh were a farmer who has put his bundles of grain on his threshing floor and is now ready to thresh them. (See: rc://en/ta/man/translate/figs-simile)