Albert Barnes Commentary Hosea 2:12

"And I will lay waste her vines and her fig-trees, whereof she hath said, These are my hire that my lovers have given me; and I will make them a forest, and the beasts of the field shall eat them." — Hosea 2:12 (ASV)

And I will destroy her vines and her fig trees - Before, God had threatened to take away the fruits in their seasons; now He says, that he will take away all hope for the future; not the fruit only, but the trees which bore it. “The vine is a symbol of joy, the fig of sweetness” (see Judges 9:11, Judges 9:13). It was the plague, which God previously laid upon those, from among whom He took them to be His people (Psalms 105:33). He smote their vines also and their fig trees, and brake the trees of their coasts. Now that they had become like the pagan, He dealt with them as with the pagan.

Of which she said, these are my rewards - Literally “my hire.” It is the special word, used for the payment to the adulteress, or degraded woman, and so continues the likeness, by which he had portrayed the foulness of her desertion of God.

And I will make them a forest - The vines and fig trees which had formerly been their wealth, and full of beauty, would, when neglected, run wild, and become the harbor for the wild beasts that would prey upon them. So to the wicked God causes, that the things which should have been for their wealth should be an occasion of falling (Psalms 69:22). They contain in themselves the sources of their own decay.