v. 29 — Cleansing and staple provision
YHWH says he will save Israel from uncleanness and “call for” grain, then it so that no is laid upon them.
v. 30 — Expanded abundance and removal of disgrace
The promise extends to tree fruit and field produce; the stated outcome is that Israel no longer bears famine’s reproach among the nations.
v. 31 — Remembrance and self-loathing
After the reversal (“then”), Israel remembers evil and deeds “not good,” resulting in self-disgust over iniquities and abominations.
v. 32 — Motive denied and shame commanded
YHWH reiterates that he acts not for Israel’s and commands the “house of Israel” to be ashamed and confounded over their ways.