Were oppressed - are “oppressed together: and all their captors have laid firm hold upon them: they have refused to let them go.” The restoration of Israel and Judah to their land is necessary. As Babylon will not let them go, it must be broken, and its empire destroyed.
Related Commentaries of Jeremiah 50:33
Jeremiah 50:33
33 Thus saith the LORD of hosts; The children of Israel and the children of Judah were oppressed together: and all that took them captives held them fast; they refused to let them go.