Second Corinthians (2 Cor 4:6), encourages believers with the truth that God who created all things has shown us “the light of the knowledge of the glory of God in the face of Jesus Christ.” In his book, God Is the Gospel: Meditations on God’s Love as the Gift of Himself, John Piper expands on what is meant by the “glory of Christ”:
[Christ’s] glory, in his first coming, was the incomparably exquisite array of spiritual, moral, intellectual, verbal, and practical perfections that manifest themselves in a kind of meek miracle-working and unanswerable teaching and humble action that set Jesus apart from all men. Each of Jesus deeds and words and attitudes was glorious, but is the way they come together in beautiful summation . . . an exquisite array — that constitutes his glory.
But the climax of his glory on earth was the way it ended. It was as if all the darker colors in the spectrum of glory came together in the most beautiful sunset on Good Friday, with the crucified Christ as the blood-red sun in the crimson sky. And it was as if all the brighter colors in the spectrum of glory came together in the most beautiful sunrise on Easter morning, with the risen Christ as the golden sun shining in full strength. Both the glory of the sunset and the glory of the sunrise shone on the horizon of a lifetime of incomparably beautiful love. This is what Paul meant in 2 Corinthians 4:4 when he spoke of “the glory of Christ.” It is the glory of a person. But the person displays his glory in words and actions and feelings. The glory is not the glory of a painting or even a sunset. Those are only analogies. They are too static and lifeless.
The spiritual beauty of Christ is Christ-in-action—Christ loving, and Christ touching lepers, and Christ blessing children, and healing the crippled, and raising the dead, and commanding demons, and teaching with unrivaled authority, and silencing the skeptics, and rebuking his disciples, and predicting the details of his death, and setting his face like flint toward Jerusalem, and weeping over the city, and silent before his accusers, and meekly sovereign over Pilate (“You would have no authority over me at all unless it had been given you from above,” John 19:11), and crucified, and praying for his enemies, and forgiving a thief, and caring for his mother while in agony, and giving up his spirit in death, and rising from the dead—“No one takes [my life] from me, but I lay it down of my own accord. I have authority to lay it down, and I have authority to take it up again” (John 10:18). Such is the glory of Christ.
John Piper’s, God is the Gospel, is available for free as a pdf.