Ibn Ezra

All ye beasts of the field, etc. The idea connecting the following with the preceding verses is, that the righteous Israelites and the proselytes will return, but those that persevere in the worship of idols will not return. אתיו Come. It is imperative (comp. 21:12) of אתה to come; comp. ואתה, and He came (Deut. 33:2). God summons the idolatrous wicked nations, to come and devour the wicked of Israel, like wild beasts that devour each other.