The serpent heals, the Cross saves: Gregory of Nazianzus enlightens Nicodemus

John 3:13–17

¹³And no one has ascended into heaven except the one who descended from heaven, the Son of Man who is in heaven. ¹⁴Just as Moses lifted up the serpent in the desert, so must the Son of Man be lifted up., ¹⁵So that everyone who believes in him may not perish but have eternal life.» ¹⁶For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. ¹⁷For God did not send his Son into the world to condemn the world, but to save the world through him.

An important, serious, respected man comes to Jesus at night—not out of cowardice, but because he doesn't yet know how to categorize what he has seen. His name is Nicodemus. And Jesus, instead of reassuring him, tells him an old desert tale: a people dying of poisoning, and God commanding the creation, from the poison itself—the bronze that bears the shape of evil—of the one object that saves. All one has to do is look up at it. Then Jesus utters the phrase that shifts everything: he too will be lifted up, like that cold metal serpent impaled on a pole. Not to frighten. To heal. Because God, he says, did not send his Son to judge the world in its evil state, but so that, by looking upon him crucified, this world might find life again.

The serpent heals, the Cross saves: Gregory of Nazianzus enlightens Nicodemus

Why does the raising of the Son of Man on the cross echo the image of the bronze serpent, and how does this change our perspective on suffering?

There is one thing most readers anticipate when faced with John 3:13-17: they skip the story of the serpent to rush to the verse they know by heart, the one about God's love for the world. Saint Gregory of Nazianzus, Doctor of the Church and one of the greatest Christian orators of the fourth century, rejects this shortcut. In his Discourse 45, delivered for Easter shortly before his death, he focuses precisely on this disturbing image—a metal serpent, brandished as a remedy—and sees in it something that few other Fathers have dared to say so bluntly: that God, to save us, accepted to take the very form of that which kills us. This meditation follows his gaze, phrase by phrase, until it places us, too, before the pole erected in the desert.

Gregory of Nazianzus facing the serpent erected in the desert

First, we must understand who is speaking. Gregory of Nazianzus is not a scholarly theologian wielding cold concepts. He is a man weary of councils, wounded by the ecclesiastical intrigues of Constantinople, and withdrawn at the end of his life to the solitude of Arianza in Cappadocia. It was there, around 383, that he composed his 45th Discourse, entitled In sanctum Pascha, a text delivered—or rather, written, since by this time he was hardly preaching in public—to accompany the Easter celebration. This discourse is not a learned treatise intended for specialists: it is an Easter homily, imbued with the spirit of the liturgy, in which Gregory revisits, one by one, the great biblical episodes that foreshadow the mystery of salvation, and the bronze serpent of Moses is among them.

What immediately strikes one about him is his refusal to evade the issue. Many commentators, faced with this image of a serpent erected as an instrument of healing, seek to soften it, to explain it quickly in order to move on. Gregory, on the contrary, dwells on it and draws from it a theological boldness that goes far beyond simple typology—that traditional way of reading the Old Testament as a preparation for the New. For him, the bronze serpent is not a decorative symbol: it is the key to an entire philosophy on how God chooses to save.

In this same discourse, developing the hymn of Christ's humility, he wrote this phrase, which has become one of the most quoted in all of Greek patristics: «He who enriches others impoverishes himself, for he adopts the poverty of my flesh so that I may be enriched by his divinity» (Discourse 45, On Holy Easter). Simply translated: God does not come down to us halfway. He truly takes on our poverty, our fragile and mortal flesh, so that we may truly receive his riches. This is not a symbolic exchange—it is a real exchange, almost scandalous in its logic. Imagine a doctor who, to treat a contagious disease, would not simply prescribe a remedy from a distance: he would enter the sick person's room, breathe the same air, touch the same feverish skin—so that his own health might, through this contact, become the health of the other.

This is precisely what Gregory sees in Moses' actions in the desert. The people, exhausted by their journey, began to murmur against God and against Moses—we know this scene from the Book of Numbers, this weariness that turns into rebellion. As punishment, venomous snakes bit the camp, and many died. The people repented, begged Moses to intercede, and God gave him an astonishing command: not to eliminate the snakes, but to make one, out of bronze, and raise it on a standard. Anyone bitten who looked at this image was healed. Gregory comments on this paradox with almost clinical precision: the remedy takes the exact form of the ailment. It is there, he says in essence in his development of this passage, that lies the deepest enigma of the entire Redemption—God does not destroy the poison from the outside; he takes it upon himself in an image, to conquer it from within.

And it is precisely this movement that Jesus takes up again before Nicodemus. This doctor of the Law, a member of the Sanhedrin, comes at night—John specifies this detail, and it is not by chance: Nicodemus is still in the shadows of his own understanding, torn between his respect for this man who performs signs and his fear of losing his position among his people. Jesus does not offer him an abstract argument about divinity. He presents him with an image that every Jew knows by heart from childhood: «Just as Moses lifted up the bronze serpent in the desert, so must the Son of Man be lifted up» (John 3:14). Gregory, in his flamboyant oratorical style, develops this same insight in a striking summary: «He received what comes from below to give what comes from above; he became poor so that we might become rich in his poverty» (Oration 45, On Holy Passover). In other words: the Cross is not a tragic accident that God repairs after the fact. It is the very place chosen so that evil, faced directly, will cease to kill us.

How elevation changes our way of experiencing suffering

The Cross as an antidote, not as a symbol

There is a widespread temptation, even among sincere believers, to treat the cross as a pious, almost decorative image—a piece of jewelry, a symbol worn around the neck without giving it a second thought. Gregory of Nazianzus forbids this lukewarm interpretation. For him, the cross functions exactly like the bronze serpent: it is an antidote, in the most concrete sense of the word. He writes, still in this same Easter discourse, a sentence that sums up his entire theory of Redemption: «He took the form of a servant so that we might receive freedom; he descended so that we might be exalted» (Discourse 45, On Holy Easter).

Let us consider a simple scene. A child has lost his way in a dense forest, and to find him, it is not enough to call his name from the edge: one must enter the thickets oneself, let oneself be scratched by the brambles, advance through the darkness he traverses. It is this logic that Gregory attributes to God's action in Christ. He does not remain at a distance from our mortal condition to deliver us from it by decree. He descends to the very place where we are bitten—to death itself—so that, by looking at him raised there on that wood, we may cease to die from within. This is not a soothing metaphor: it is a surgical operation performed from within the sick body.

This intuition strangely echoes what Saint Irenaeus of Lyons, another great voice of the tradition, wrote a century earlier in his treatise Against Heresies: there he develops the idea that Christ recapitulates in himself all of fallen humanity to lead it, step by step, back to life. Gregory does not quote Irenaeus by name in this passage, but their shared intuition illuminates an essential point: salvation is not a decree from above, it is a path traveled from within our own condition. When we go through a trial—illness, bereavement, betrayal—this thought changes something: it does not tell us that suffering is good in itself, it tells us that God does not observe this suffering from afar. He has experienced it from within, to the very end, and it is precisely this that makes it bearable for us as well.

To look is not to understand — it is to trust

A second aspect deserves further attention, as it touches on something very relevant today: our difficulty in trusting without being in complete control. In the desert episode, those who are bitten are not healed because they understand the mechanism of the remedy—they are healed because they look up. It is a gesture of almost disconcerting simplicity: no complicated ritual, no additional sacrifice, just a glance turned toward the object placed before them, even as the pain of the venom still grips them.

Jesus repeats this gesture exactly when he announces to Nicodemus: «so that in him everyone who believes may have eternal life» (Jn 3:15). Here, to believe is not primarily to adhere to a system of ideas. It is this movement of the eyes toward the Cross, this trust that precedes understanding. Gregory of Nazianzus, in another famous passage of his work—Discourse 27, known as the Theological Discourse—rightly emphasizes the limits of our reason in the face of the mystery of God: he reminds us that true theology is not primarily a matter of demonstration, but of contemplation, like Moses who climbed the mountain and saw God only from behind, never fully grasping him. It is the same humility that is required before the Cross: we do not fully understand how this wood becomes healing, but we are called to turn our eyes toward it, as the people of the desert turned theirs toward the bronze.

Consider someone in a hospital waiting room who doesn't understand the medical terms being explained, yet chooses to trust the surgeon's hand nonetheless. This isn't naivety—it's a form of courage that accepts not being in control. Before the Cross, our gaze functions in the same way: it doesn't penetrate all the mysteries of Redemption, but it surrenders to them, and it is this very surrender that becomes the path of life.

God did not come to judge, but to save

The third movement of this text is perhaps the most urgent to hear today, in a world saturated with accusations and constant trials—on social media, within families, in our own nocturnal thoughts where we relentlessly judge ourselves. Jesus says it unambiguously to Nicodemus: «God did not send his Son into the world to condemn the world, but to save the world through him» (John 3:17). This verse overturns a still widespread image of God, that of a stern judge who waits for our sin to punish us.

Gregory of Nazianzus, in his Discourse 45, goes so far as to describe this mystery as a movement of love that precedes all meritocracy: Christ «became poor so that we might become rich in his poverty»—not because we deserved it, but as a pure gift. In the Apophthegms of the Desert Fathers, a collection of sayings attributed to the first monks of Egypt, we find this now-famous saying of Abba Moses the Ethiopian: when questioned about a brother who had sinned, he refuses to judge him and says that he has come rather to weep over his own sin—a gesture that illustrates, on a human scale, this same logic of non-judgment that Gregory attributes to God himself. This is not indifference to evil: it is a gaze that chooses to heal rather than condemn.

Imagine a parent whose child has done something very wrong and comes home terrified of being punished. What this child sometimes receives, unexpectedly, is not a lecture, but a welcoming gesture that completely disarms them—far more effective than any punishment in changing their behavior. It is this experience, on an infinitely larger scale, that John recounts through the words of Jesus: God does not primarily seek to establish our guilt; he seeks to meet us where we are wounded, so that we may lift our eyes and live.

What this meditation leaves us

This text first invites us to change the way we look at our own wounds. We tend to want to hide them, deny them, or, conversely, wallow in them with sterile complaint. The gesture required in the desert is different: it is about looking the wound in the face, not to drown in it, but to turn our gaze toward that which heals. The cross, in this perspective, is not an object of morbid sadness—it is the precise place where the evil was fully embraced in order to be transformed from within.

This thought of Gregory of Nazianzus has had a considerable influence on the Christian tradition. Centuries later, it reappears in the theology of the wondrous exchange developed by authors as diverse as Saint Augustine and, much later, by the mystics of the Cross such as Saint John of the Cross. The central idea remains constant: God does not save from afar, but saves by descending to the very depths of our being. This patristic insight, born in the desert of Arianza where Gregory spent his final days far from ecclesiastical honors, continues to nourish Christian piety each time the Liturgy of the Glorious Cross or the Passion is celebrated.

From this passage, we are left with a simple attitude to adopt: that of not fleeing from what wounds us, but bearing it before the Cross, as one bears a wound before the only remedy capable of truly healing it. This is not an invitation to seek out suffering—it is an invitation to no longer endure it alone. Gregory concludes his Easter discourse on a luminous, almost sung note of victory, which sums up this entire journey: «Let us become like Christ, since Christ is like us; let us become gods through him, since he is man through us» (Discourse 45, On Holy Easter).

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