6. cast—Hebrew, "pour out"; referring to the emptying of the baskets of earth to make the mound, formed of "trees" and earthwork, to overtop the city walls. The "trees" were also used to make warlike engines.
this—pointing the invaders to Jerusalem.
visited—that is, punished.
wholly oppression—or join "wholly" with "visited," that is, she is altogether (in her whole extent) to be punished [Maurer].