In 1 Corinthians 5, Paul confronts both the serious sexual sin within the Corinthian church and the church’s troubling silence about it. He calls believers to respond to sin, whether in our own lives or in the lives of others, with grief, not arrogance or indifference. Sin grows when minimized, and even a little “leaven” can spread through the whole community. Because Christ our Passover Lamb has been sacrificed, we are called to pursue sincerity and truth, resisting excuses that downplay sin’s seriousness. At times, faithful love even requires radical action, always aimed at repentance and spiritual restoration.