17:7–18:24 Seven messages of judgment on Babylon are arranged into larger groups: three angelic messages of doom (17:7–18; 18:1–3; 18:4–8), three laments by those committed to Babylon (18:9–10, 11–17a, 17b-19), and a climactic pronouncement of the permanence of her fall (18:21–24). Note also the many allusions to Jer. 50; 51 and Ezek. 27.