Which thy sons and thy daughters should eat. — There is no relative pronoun in the Hebrew, and the clause stands parallel with the others, they shall eat (i.e., destroy) thy sons and thy daughters, and is so translated in all the older versions. In the other clauses the verb is in the singular, “it (i.e., the invading army) shall eat.”
Impoverish. — Better, break down, or shatter. The “sword” is used, as in Ezekiel 26:9, for “battle-axes” and other weapons used in attacking cities.