This study explores Prince Emmanuel's final address to the city of Mansoul in John Bunyan's The Holy War, focusing on why God allows original sin to remain in the regenerate. Guided by Alexander Whyte's commentary, we see that Christ leaves these internal remnants not out of weakness, but in divine wisdom to foster genuine humility, keep faith active, and demonstrate His long-suffering mercy. Classic commentators like George Burder provide essential historical and doctrinal context for translating Bunyan's military metaphors into daily Christian experience, while John Owen's Indwelling Sin supplies the clinical theological framework distinguishing between sin reigning and sin dwelling. Complemented by the intimate, searching prayers of Philip Doddridge, the discussion ultimately encourages weary believers to maintain constant vigilance, refuse any truce with remaining corruption, and take heart in Emmanuel's ultimate command and promise: "Hold fast till I come."