eat, and not have enough - just retribution on those who “eat up (greedily) the sin of My people” (Hos 4:8; Mic 6:14; Hag 1:6).
whoredom, and ... not increase - literally, “break forth”; used of giving birth to children (Gen 28:14, Margin; compare Gen 38:29). Not only their wives, but their concubines, shall be barren. To be childless was considered a great calamity among the Jews.