Catholic Commentary
The Question About Fasting and the Newness of the Kingdom
18John’s disciples and the Pharisees were fasting, and they came and asked him, “Why do John’s disciples and the disciples of the Pharisees fast, but your disciples don’t fast?”19Jesus said to them, “Can the groomsmen fast while the bridegroom is with them? As long as they have the bridegroom with them, they can’t fast.20But the days will come when the bridegroom will be taken away from them, and then they will fast in that day.21No one sews a piece of unshrunk cloth on an old garment, or else the patch shrinks and the new tears away from the old, and a worse hole is made.22No one puts new wine into old wineskins; or else the new wine will burst the skins, and the wine pours out, and the skins will be destroyed; but they put new wine into fresh wineskins.”
Jesus isn't a patch on the old order—he's the Bridegroom whose arrival transforms fasting from discipline into longing.
In response to a challenge about fasting, Jesus identifies himself as the messianic Bridegroom whose presence transforms the nature of religious practice. Through two vivid parables — the patched garment and new wineskins — he announces that the Kingdom of God is not a reform of the old order but a wholly new creation that demands new forms of life, worship, and discipleship.
Verse 18 — The Challenge: The question comes from an unusual coalition: disciples of John the Baptist and disciples of the Pharisees. Both groups observed fasting disciplines — Pharisees fasted twice a week (cf. Luke 18:12), and John's austere movement is associated throughout the Gospels with practices of penitential preparation. The questioners assume a common framework: if your movement claims to be serious about God, where is the asceticism? The challenge is not hostile curiosity but a genuine theological category confusion. They are measuring Jesus by the existing yardsticks of Second Temple piety.
Verse 19 — The Bridegroom's Presence: Jesus' answer is strikingly indirect: he does not defend his disciples' behavior but reframes the entire question. The image of the nymphios (bridegroom) and his huioi tou nymphōnos ("sons of the bridal chamber," often translated "groomsmen" or "wedding guests") is drawn from the vivid world of Jewish wedding celebration, which could last up to seven days. To fast at a wedding feast is not virtue — it is absurdity, even insult to the host. The implicit claim is seismic: Jesus is not merely a teacher or prophet; he is the Bridegroom, the one whose arrival constitutes the fulfillment of Israel's covenant hope. The Old Testament consistently images God's relationship to Israel as a marriage (Hosea 2:16–20; Isaiah 54:5–6; Ezekiel 16), and later, in the New Testament, Christ's relationship to the Church (Ephesians 5:25–32; Revelation 19:7–9). The disciples' exemption from fasting is not laxity; it is the only fitting response to the presence of the One for whom all fasting was waiting.
Verse 20 — The Shadow of the Cross: The sudden shift in verse 20 is among the earliest and most unmistakable predictions of the Passion in Mark's Gospel. The bridegroom "will be taken away" (aparthē, a verb with overtones of violent removal, echoing Isaiah 53:8 LXX where the Servant is "taken away" in his affliction). Jesus here does not simply predict his death abstractly; he locates it within the logic of the passage — his absence will restore the conditions under which fasting becomes appropriate and even necessary. Post-resurrection Christian fasting, then, is not a return to Pharisaic discipline; it is an eschatological act — a longing for the fullness of what was inaugurated in Christ but not yet consummated. Mark's use of the singular "that day" (en ekeinē tē hēmera) may carry apocalyptic resonance, pointing not only to the days following the crucifixion but to the whole age between Resurrection and Parousia.
Verses 21–22 — The Twin Parables: The two images — the unshrunken cloth sewn onto an old garment, and new wine poured into old wineskins — are complementary and mutually reinforcing. Raw, unshrunken cloth, when wet, contracts dramatically; stitching it onto a worn garment causes the old fabric to tear worse than before. Likewise, new wine, still fermenting and expanding, will burst inflexible old leather skins that cannot accommodate its pressure, destroying both wine and vessel. The logic is not that the old is bad — the old garment and old wineskins have their dignity — but that the new reality Jesus brings is so qualitatively different that trying to contain it within the old structures will damage both. This is not a blanket rejection of Israel's Torah and traditions; rather, it is a declaration that Jesus himself is not a patch on Judaism but its eschatological fulfillment and transformation. The Kingdom cannot be understood as merely an upgraded version of what preceded it. Note that Mark, unlike Luke (5:39), omits the saying "no one, having drunk old wine, desires new." This sharpens the Markan emphasis on urgency and radical newness without softening it for those attached to the familiar.
Catholic tradition reads this passage on multiple levels, each illuminating a different facet of the mystery of Christ and the Church.
The Bridegroom Christology lies at the heart of the passage and resonates deeply through Catholic teaching. The Catechism teaches that "Christ is the center of all... the Bridegroom who has poured out his life for us" (CCC 796), and that the Church is the Bride of Christ, born from his pierced side as Eve from the side of Adam (CCC 766, 796). Pope John Paul II's Theology of the Body develops this nuptial imagery extensively, seeing in the spousal union of Christ and the Church the definitive fulfillment of the "great mystery" of human sexuality and covenant love (cf. Mulieris Dignitatem, §23–26). When Jesus calls himself the Bridegroom, he is not using casual metaphor — he is disclosing the innermost identity of God's relationship to humanity.
The theology of Christian fasting receives important nuance here. The Church Fathers were careful to distinguish Christian fasting from its Old Testament antecedents. St. Leo the Great (Sermon on Lent, Sermo XLII) teaches that Christian fasting is always oriented toward the Paschal mystery — the absence of the Bridegroom — and thus to hopeful anticipation of his return. The Didache (8:1), the earliest non-canonical Christian document, already establishes Wednesday and Friday as Christian fast days, precisely because these are days associated with the Passion — a direct application of verse 20. The Catechism (CCC 1434, 2043) situates fasting within the framework of penance and conversion, not as works of righteousness for their own sake but as a participation in the dying of Christ that awaits his glorious return.
The new wine of the Eucharist was recognized early by the Fathers as one dimension of this parable's spiritual sense. St. Irenaeus (Adversus Haereses, III.17.2) uses the new wine imagery to speak of the Holy Spirit and the newness of grace poured out in the Church. The Eucharist — which Jesus will explicitly associate with "the fruit of the vine" at the Last Supper (Mark 14:25) — is precisely the new wine that cannot be contained in pre-Christian vessels of worship but calls forth the new wineskin of the Church and her sacramental life.
For contemporary Catholics, this passage confronts two opposite temptations that recur in every generation of the Church.
The first is the temptation to treat Christian faith as merely a refinement of existing moral or spiritual systems — to reduce the Gospel to better self-help, to a more sophisticated ethics, or to a religious tradition that fits comfortably within whatever cultural assumptions one already holds. Jesus' parables of the patch and the wineskins resist this. The new wine of the Gospel — the living presence of Christ, the gift of the Spirit, the sacramental life of the Church — demands that we remain perpetually open to being stretched, even uncomfortably so.
The second temptation is to abandon fasting altogether, reasoning that we live always in the joy of the Resurrection. Verse 20 answers this: between Resurrection and Parousia, in the real time of our lives, the Bridegroom is genuinely absent in the mode of bodily presence. Friday abstinence, Lenten fasting, and the Church's penitential days are not legalistic holdovers; they are Christologically grounded acts of longing — the Church saying with Revelation 22:20, "Come, Lord Jesus." Recovering a robust, personally meaningful practice of fasting is not nostalgia; it is one of the most countercultural acts available to a Catholic today.