This sermon explores how the gospel shapes the church's response to sin within its community. Drawing from 1 Corinthians 5, it highlights a shocking case of sexual immorality in the Corinthian church and their arrogant, ungodly response to it. The sermon emphasizes that sin is not a private matter and affects the entire church body. It outlines a biblical approach to dealing with unrepentant sin, stressing the importance of grief, removal from fellowship for the sake of the individual's spirit, and maintaining the purity and witness of the church. The message distinguishes between disassociating from worldly sinners and holding believers accountable, ultimately aiming for restoration and holiness within the church family.