Note 184 — PROMETHEUS BOUND
E. H. (Edward Hayes) Plumptre translation
The lines refer to the story that Zeus loved Thetis the daughter of Nereus, and followed her to Caucasos, but abstained from marriage with her because Prometheus warned him that the child born of that union should overthrow his father. Here the future is used of what was still contingent only. In the lost play of the Trilogy the myth was possibly brought to its conclusion and connected with the release of Prometheus.