In this sermon on Isaiah 9:1–5, we’re reminded that Jesus Christ is the promised child and great light who dawns upon a people living in deep darkness—whether national, societal, or personal. The Scriptures reveal that Christ’s kingdom is inaugurated through his sacrificial death and victorious resurrection, turning darkness into light as sinners repent and believe the gospel. We consider five glorious effects of this gospel light in the lives of those who embrace Christ: multiplication of life, irrepressible joy, heartfelt worship, true liberty, and lasting peace. In a world (and often in our own hearts) that feels increasingly dark, the resounding answer to every form of gloom, anguish, and death is still Jesus Christ, the Light of the world.