Shared ground
Jeremiah describes receiving a “cup” from Yahweh and making the nations drink it (v.17). The action is presented as something Yahweh “sent” Jeremiah to do, so the prophet’s role is not self-chosen. The list starts with Jerusalem and Judah’s towns and leaders (v.18) and then widens outward, moving through major powers and many smaller peoples until it reaches “all the kingdoms of the world” (v.26). The repeated emphasis on “all” and on “kings” underlines the scope: political leaders and their societies are included, not just isolated individuals.
The effects named for Judah—desolation, public shock, scorn, and becoming a curse (v.18)—frame the cup as a picture of severe disaster. The ending (“the king of Sheshach shall drink after them,” v.26) signals that the same fate reaches the dominant power too, even if later.
Where interpretation differs (only where needed)
How “cup” should be taken. Some readers treat the cup mainly as symbolic language for Yahweh’s judgment expressed through historical upheaval (war, collapse, deportation). Others think the passage is best read as prophetic drama—Jeremiah acts out the message in a staged way (whether or not any literal drinking occurred).
How to identify “Sheshach.” Many understand “Sheshach” as a coded name pointing to Babylon, making the final line a sharp conclusion: after all nations drink, the great northern power does too. Others treat “Sheshach” as a less-certain reference (a place or ruler now hard to identify), so the emphasis falls more generally on a final, climactic recipient.
Why the disagreement exists
The text is vivid but not explicit about mechanics: it reports Jeremiah “took” a cup and “made” nations drink, but it does not pause to explain whether this is a vision, a public sign-act, or compressed prophetic speech. Likewise, “Sheshach” is presented without explanation, so interpreters weigh internal clues (the ending’s punch, the wider chapter’s focus on a northern empire) against the fact that the name itself is opaque.
What this passage clearly contributes
This unit contributes a strong claim about Yahweh’s reach in history: the coming catastrophe is not confined to Judah but extends nation by nation across the region and finally to the whole world of kingdoms (vv.17, 26). It also makes an uncomfortable point about priority: Jerusalem and Judah drink first (v.18), so being at the center of Yahweh’s purposes does not equal exemption. And it closes with a pointed reversal: even the last, climactic “king” must drink too (v.26), suggesting that imperial power is not the final authority over events (Jeremiah 25:15 gives the immediate setup for this cup imagery).