Shared ground
Joel 3:1–3 presents a future “time” when God reverses Judah and Jerusalem’s losses (“restore the fortunes”). In that same setting, God also calls the nations to account. The text is explicit that God gathers the nations to the “valley of Jehoshaphat” and that the reason for judgment is how they treated God’s people Israel and God’s land.
The charges are concrete and moral: Israel was scattered, the land was divided up, and people were treated like property—assigned by lots and traded, including the sexual exploitation and commodification of children. The passage frames these acts not only as violence against humans but as an assault on what God calls “my people” and “my land.”
Where interpretation differs (only where needed)
How near or far the “time” is. Some read “in those days…at that time” as pointing mainly to a historical reversal within Israel’s story (a national recovery after displacement and foreign pressure). Others think the language is meant to stretch to a final, climactic future reckoning involving the nations more broadly.
What the “valley of Jehoshaphat” refers to. Some take it as a real geographic location connected to Jerusalem’s environs. Others think the name functions mainly as a meaningful scene-setting label for divine judgment, whether or not it maps to a specific valley.
How wide “all nations” is. Some understand it as the nations that directly harmed Israel/Judah in history. Others understand it as universal in scope: God’s final accounting with the whole world.
Why the disagreement exists
The passage gives strong images (“all nations,” a named valley, a sweeping courtroom-like gathering) but few timestamps. It also sits within Joel’s broader “Day of the Lord” horizon, where near-term events and ultimate events can be described with similar language (compare the lead-in at Joel 2:28–32).
What this passage clearly contributes
This text directly ties restoration for Judah/Jerusalem to accountability for those who harmed them: renewal is not described as ignoring wrongdoing but as addressing it. It also clarifies what God counts as actionable evil: scattering a people, taking their land, and turning human beings—especially children—into tradable goods. The passage presents God as actively gathering perpetrators for judgment “because of” what they did, not merely observing history from a distance.