According to Hosea 8:7, they sow the wind and reap what?

Answer: The whirlwind

"They sow the wind, and they shall reap the whirlwind" describes Israel reaping disaster from its empty idolatry.

“For they sow the wind, and they shall reap the whirlwind. There is no standing grain; what sprouts fails to yield flour. Even if it should produce, the foreigners would swallow it up.”— Hosea 8:7 (BSB)