Jamieson, Fausset and Brown on Hosea 2:9

9. my corn ... my wool ... my flax--in contrast to "my bread ... my wool ... my flax," (Ho 2:5). Compare also Ho 2:21-23, on God as the great First Cause giving these through secondary instruments in nature. "Return, and take away," is equivalent to, "I will take back again," namely, by sending storms, locusts, Assyrian enemies, &c. "Therefore," that is, because she did not acknowledge Me as the Giver.

in the time thereof--in the harvest-time.