User blog comment:FTWinchester/Season 9 concepts/@comment-86.132.19.60-20140102001553/@comment-3481504-20140102032207

Nothing, other than God and Death, is infinite. This relates to this by the fact that, to toss every rogue angel into the cage, would be counterproductive, cause eventually, it'd fill up. No, seeing as Metatron said, "Imprisoned ones, with an "s."