Abel is revealed to be the "infernal guinea pig" on whom the demons of Hell practiced their torture for millennia.
The 16th episode of Lucifer Season 3, titled is a pivotal installment that explores the weight of eternity, the concept of a "Hell loop," and the desperate desire for mortality. The episode blends high-stakes supernatural drama with the series' signature procedural elements, ultimately questioning whether someone can ever truly escape their past. The Eternal Cycle: Cain and Abel
Witnessing Chloe's mortality firsthand, Lucifer realizes that his alliance with Pierce—and the proximity of celestial danger—is a direct threat to her.