How do we know that the Holy Spirit convicts us of sin?

In John 16:8, Jesus explains that the Holy Spirit's conviction is centered on 'sin'—not sins, but the singular sin of unbelief. This conviction is profound, causing individuals to confront their true nature as sinners in need of redemption. The Apostle Paul exemplifies this in Romans 7, where he expresses the inner struggle of a believer recognizing their wretchedness apart from Christ. The Holy Spirit works through the preaching of the Gospel, revealing the seriousness of sin and the necessity for faith in Jesus Christ.