They won't dwell in Yahweh's land; But Ephraim will return to Egypt, And they will eat unclean food in Assyria.
Baal worship and its accompanying immoral rituals were aimed at increasing the produce from farms and vineyards. As a punishment God will destroy the farms and vineyards and send the people into captivity. There they will be forced to eat food that to them is unclean (9:1-3). They will not be able to offer the usual food and wine offerings; in fact, they will barely have enough to keep themselves alive. Meanwhile the land in which they once lived will become wild again through neglect (4-6).