Revelation 20:3, 10

The mighty angel threw him into the pit, locked it, and sealed it so that he could no longer deceive the nations until the thousand years were over. (After that he must be loosed for a brief time.)

Then the devil who had deceived them was thrown into the same place with the wild beast and the false prophet—the lake of fire and sulfur—where they will be tormented day and night forever and ever.