Why is the transfiguration significant for Christian theology?

The significance of the transfiguration lies in its profound theological implications regarding Christ's nature and His mission. This event serves as a divine affirmation of Jesus' identity and authority, where the Father proclaims, 'This is my beloved Son.' Additionally, it highlights the intended fulfillment of Christ's death as an achievement for His people, rather than a mere potentiality. Understanding the transfiguration helps Christians grasp that Christ’s glory and His suffering are both crucial aspects of His role as Savior, culminating in the true nature of salvation afforded through His sacrifice.