Penance: [s5e4]

The title "Penance" refers most directly to John Diggle. Trapped in a cycle of self-loathing following the death of his brother, Andy, Diggle believes he deserves to be in prison—not for the crime he was framed for, but for the one he actually committed.

the fourth episode of Arrow’s fifth season, serves as a pivotal exploration of leadership, the moral weight of vigilantism, and the recurring theme of atonement that defines the series. The Conflict of Leadership [S5E4] Penance

The core of the episode revolves around Oliver Queen’s decision to break John Diggle out of a military prison. This mission creates a sharp ideological divide between Oliver and his new recruits. For the first time, the "New Team Arrow"—Wild Dog, Artemis, and Curtis—actively opposes Oliver, even going as far as to physically intercept him. The title "Penance" refers most directly to John Diggle