The millennial reign
They came to life and reigned with Christ for a thousand years (Revelation 20:4). The default framework reads this as a future earthly reign following the return; amillennial readers understand the thousand years as the present age, postmillennial readers as a coming age of gospel triumph before the return. Each view renders under its own label.
1Then I saw an angel coming down from heaven with the key to the Abyss, holding in his hand a great chain. 2He seized the dragon, that ancient serpent who is the devil and Satan, and bound him for a thousand years. 3And he threw him into the Abyss, shut it, and sealed it over him, so that he could not deceive the nations until the thousand years were complete. After that, he must be released for a brief period of time.