This sermon presents a profound theological reflection on the incarnation of Christ as the pivotal moment in God's eternal redemptive plan, framing Christmas not merely as a celebration of a historical birth but as the fulfillment of a divine covenant designed from the foundation of the world. Centered on John 3:26–30, it unfolds the metaphor of Christ as the bridegroom and the church as His bride, tracing this theme from Genesis through the prophets and into the New Testament, demonstrating that the people of God—redeemed, transformed, and gathered from every nation—were always part of God's eternal purpose. The preacher emphasizes that Christ's coming was not an afterthought but the climax of a story that began in Eden, was sustained through covenants, and finds its ultimate expression in the union between Christ and His people, a union that demands personal surrender and a life of decreasing self so that Christ may increase. With a tone that is both reverent and urgent, the message calls believers to move beyond sentimental holiday traditions and instead fix their eyes on the cross, resurrection, and the future return of the Bridegroom, preparing themselves as a pure and faithful bride for the final wedding feast.