Shared ground
Isaiah 27:7–9 explains Israel/Jacob’s suffering as real but limited. The questions in v.7 expect a “no”: God has not struck Israel in the same way—or to the same final extent—as he struck those who struck them. The language of being “sent away” (v.8) adds the idea of removal and loss of security, but still “in measure,” not as total destruction.
The passage also gives a clear purpose statement. The hardship is connected to dealing with Jacob’s wrongdoing, and the “fruit” (visible outcome) is the removal of sin through the end of idolatry (v.9). The text ties forgiveness/removal of guilt to concrete destruction of altar stones and the end of Asherim and sun images.
Where interpretation differs (only where needed)
Who is “him/them” in v.7? Some read the contrast as Israel versus their foreign attackers: Israel is disciplined; the attackers are destroyed. Others think the comparison is more internal or historical: Israel’s losses are not proportional to the slaughter they themselves once inflicted, so God’s response is restrained.
What does “send them away” (v.8) point to? Many take it as exile/scattering language. Others read it more generally as being driven off, displaced, or otherwise removed from stability, without requiring a specific exile event.
Which altars are being smashed (v.9)? Some limit the altar stones to illicit shrines (rival worship sites). Others think it may also include compromised worship structures that had blended the worship of Israel’s God with forbidden symbols.
Why the disagreement exists
The pronouns in v.7 are compressed, so the referents must be inferred from nearby themes. Also, “east wind” and “send away” can describe either literal weather and displacement or function as images for an invading power and forced removal.
What this passage clearly contributes
Explicitly, it links God’s discipline with restraint (“in measure”) and with a moral-religious aim: guilt is dealt with by removing practices tied to false worship. The text’s stated evidence of sin being “taken away” is not only an inner change but the public, lasting removal of idolatrous objects and sites. This sits within Isaiah’s broader picture of judgment that does not cancel restoration (compare the vineyard care just before in Isaiah 27:2).