Accept the mystery of His Cross

For the Son of Man will come with his angels in his Father’s glory, and then he will repay everyone according to his conduct. — Matthew 16:27

Last Sunday, we heard Peter make his great confession: “You are the Christ, the Son of the living God” (Mt 16:16). This Sunday, we hear him rebuke the very Christ he had just confessed. “God forbid, Lord! No such thing shall ever happen to you!” (Mt 16:22). What a difference seven verses make. From “Blessed are you, Simon,” to “Get behind me, Satan!”

This startling reversal reveals a truth at the heart of the Christian life: it is not enough to confess Christ in word — we must also accept the mystery of His Cross.

Peter’s error is not doctrinal, but existential. He rightly identified Jesus as the Messiah, but misunderstood what kind of Messiah He is. He recoils from the notion that Christ must suffer and be killed. He wants resurrection without crucifixion, glory without sacrifice. In this, he unwittingly becomes an obstacle. “You are a stumbling block to me,” says the Lord. The Greek word skandalon refers to something that causes another to trip. Ironically, Peter — the rock — is now the stumbling stone.

Saint Thomas Aquinas, commenting on this passage, notes that Peter’s rebuke is a temptation similar to that offered by Satan in the desert: a kingdom without the Cross, glory without obedience. But Jesus, the New Adam, remains faithful to the mission entrusted to Him by the Father (STh III, q.46, a.4).

This Gospel, then, is not merely about Peter — it is about us. For Jesus goes on to say: “If anyone wishes to come after me, he must deny himself, take up his cross, and follow me” (Mt 16:24). This is not a metaphor for discomfort or disappointment. The Cross is the form of Christian life. It is the shape of love in a fallen world. And the disciple must conform himself to the crucified Lord, not only in outward suffering but in inward self-offering.

Here Saint Paul’s words in the Second Reading are decisive: “Offer your bodies as a living sacrifice, holy and pleasing to God — your spiritual worship” (Rom 12:1). The word he uses — logiken latreian — can be rendered as “rational worship” or “logically fitting worship.” For Aquinas, this is the heart of the moral life: the transformation of the person through grace to offer his entire self to God as a reasonable act of love (STh II-II, q.81, a.1).

This sacrificial worship is not confined to the altar, it is to become the rhythm of our daily lives. The Christian is not conformed to this age, but transformed by the renewal of the mind, shaped by divine truth rather than worldly convenience. In a culture of self-assertion and spiritual mediocrity, the Cross remains a scandal. But for those who believe, it is the wisdom and power of God.

The prophet Jeremiah, in our First Reading, speaks with raw honesty: “You duped me, O Lord, and I let myself be duped. … I say I will not mention him, I will speak in his name no more. But then it becomes like fire burning in my heart.” (Jer 20:7, 9) This is the interior cost of prophetic fidelity. Every true vocation bears the mark of the Cross — not as punishment, but as participation in the love that redeems the world.

For those of us called to follow Christ in ordained ministry, consecrated life or Christian discipleship in the world, Sunday’s Gospel is a summons to ongoing conversion. We must move from confessing Christ merely with our lips to embracing Him with our lives — even, and especially, when He leads us to Calvary.

Let us not be scandalized by the Cross. Let us not rebuke what God has willed. Let us deny ourselves, take up our cross daily and follow Him — not out of fear, but out of love. For only in losing our life for His sake will we find it.