Simile est regnum caelorum sagenae: The Parable of the Net and Maria stella maris

By Prof. Dr. Daniel C. Afonso · Updated 20 October 2026

Iterum simile est regnum caelorum sagenae missae in mare et ex omni genere congreganti. Quam cum impleta esset, educentes in littus et sedentes collegerunt bonos in vasa, malos autem foras miserunt.
Mt 13:47-48

Mt 13:47-53 closes the great chapter of Matthew’s parables with two brief parables (the net and the treasure new and old) and a key question put to a scribe. The parable of the net is structurally parallel to that of the weeds and the wheat: a mixture (of good and bad fish) that is separated only at the end, by harvesters/fishermen, not by the sower/fisherman himself. The difference of context is significant: while the weeds and the wheat are in a field (an earthly image), the fish are in the sea, and the sea in the biblical imagination is frequently a symbol of chaos and of the forces that oppose God (cf. Rev 21:1: “in the new world, the sea is no more”).

The net that takes in “every kind of fish” (Mt 13:47: “ex omni genere congreganti”) is an image of the missionary universality of the Church: the proclamation of the Gospel does not select its recipients beforehand. The fisherman casts the net into the sea without choosing whom he will catch; the selection comes afterward, on the shore. The missionary theology of this parable is inclusive: it goes to all, proclaims to all, welcomes all, knowing that the final discernment belongs to God, not to the fishermen.

I. “Sagenae missae in mare”: The Universal Net

“Simile est regnum caelorum sagenae missae in mare et ex omni genere congreganti” (Mt 13:47): the sagena (σαγήνη) is a dragnet, different from the fishing net used individually. The dragnet operated along the coast: it was cast into the sea, dragged the bottom, and was pulled to the shore by many fishermen. The image is that of a communal mission: not a solitary fisherman but a community of fishermen working together to drag the net across the whole sea.

The “every kind” (ἐκ παντὸς γένους) that the net catches is the expression of the universality of the Kingdom: not only Israel but the Gentiles, not only the righteous but sinners, not only the doctors of the law but the unlearned. The Church as a “dragnet” that takes in every kind is the image of catholicity; “catholic” means precisely “according to the whole” (καθ’ ὅλον), the universality that does not exclude by category.

Mary as “Mother of the Church” is, by definition, within this universal net: she who said “Do whatever he tells you” (Jn 2:5) to all who were at the wedding feast of Cana, she who was in the Upper Room with disciples of every kind (Acts 1:14), is the figure of the Church that welcomes all because the very Son whom she bore came to save all. The Marian devotion that associates Mary with the catholicity of the Church, “Mother of All Peoples”, has in the parable of the net its Gospel image.

II. “Separaverunt malos de bonis”: The Last Judgment

“So it will be at the close of the age: the angels will come and separate the evil from among the righteous” (Mt 13:49): as in the parable of the weeds and the wheat, the final separation is made by the angels, not by men. The structure of judgment in Matthew is consistent: human beings do not carry out the final judgment; they only take part in it as its object. Judgment belongs to God through His messengers; the human attempt to anticipate the final judgment is the temptation of fanaticism that the parable implicitly refuses.

“Ibi erit fletus et stridor dentium” (Mt 13:50): the expression “weeping and gnashing of teeth” that closes the parable of the net (as it closed the parable of the weeds, Mt 13:42) is one of the most austere eschatological warnings in Matthew. It is not theological sadism; it is the seriousness of the decision that each human life constitutes. The “being good or bad fish” is not an arbitrary assignment but the accumulated result of choices made over a lifetime. Judgment reveals what the person has chosen to be; it does not impose a categorization from outside.

Mary and the theme of judgment: the tradition of the “Last Judgment” in medieval art frequently placed Mary as intercessor beside Christ the judge (the iconography of the Deesis). This representation does not contest divine judgment; it expresses confidence in the intercession of Mary as “Advocata nostra” (Salve Regina). Mary intercedes for those who still have time for conversion, not for those who have already been definitively separated. Her intercession is, as in the parable of the net, an act of fishing: helping those who are still at sea to reach the shore before the final separation.

III. “Omnis scriba doctus in regno”: The Treasure New and Old

“Omnis scriba doctus in regno caelorum similis est homini patrifamilias, qui profert de thesauro suo nova et vetera” (Mt 13:52): the little parable of the scribe of the Kingdom closes the chapter of the parables with an image of integration: the scribe who “has understood” (Mt 13:51) does not abandon the old treasure (the Torah, the Prophets, tradition) but integrates it with the new (the teaching of Jesus). The “new and old” (nova et vetera) is the image of Christian hermeneutics: not the replacement of the Old Testament by the New but the interpretation of the Old in the light of the New.

Jesus’ question, “Have you understood all this?” (Mt 13:51), and the disciples’ answer (“Yes”) contrast with the incomprehension of the crowds. The disciples who “understand” are the new scribes of the Kingdom, called to integrate the treasure of the earlier revelation with the radical newness of the Gospel. This task is permanent in the life of the Church: “theology” as the effort to integrate the “new and old” is the ministry of the scribe of the Kingdom.

Mary as “scribe of the Kingdom”: she who “kept and pondered these things in her heart” (Lk 2:19, 51) was the first to integrate the “new” (the incarnate Son of God) with the “old” (the tradition of Israel that she knew, as is seen in the Magnificat, replete with Old Testament echoes). The Magnificat is, literally, an integration of “treasure new and old”: the new grace received at the Annunciation sung with the words of the Psalms, of the Canticle of Hannah (1 Sam 2:1-10), and of the Prophets. Mary who sang the Magnificat is the model of the “scribe of the Kingdom”, who brought forth from the heart “nova et vetera”.

IV. Mary and the Net of the Kingdom: Presence at Sea and on the Shore

The image of the net cast into the sea has a Marian application that tradition has developed subtly: Mary as the “net” that, by her intercession, draws men toward the shore of the final judgment. The title “Star of the Sea” (Stella Maris, attributed to Mary since at least the fourth century, based on a play of etymology with “Maria” = “stilla maris”, drop of the sea) has here its symbolic context: the star that guides the fishermen on the dark sea, the one that, in maritime symbolism, directs those who sail toward the safe shore.

Mary, who was present at “both moments” of the net, at the casting (the Annunciation: the moment when the Son entered the sea of human history) and on the shore (the Upper Room: the moment when the Church began to draw the net in), is the figure of the maternal presence throughout the whole mission. From the “fiat” that cast the Son into the sea of history to the “one at prayer” in the Upper Room who awaited the Holy Spirit in order to begin drawing the net in, Mary accompanies the entire history of the Kingdom’s fishing.

July 30, in the liturgical calendar, has no special feast; it is a day of Ordinary Time that the Liturgy of the Hours and the daily Eucharist fill with regular prayer. But the parable of the net invites a meditation on the universality of the Church that fishes: the Church that, each day, casts the net into the sea of humanity and waits with patience for the harvest of the final judgment. Mary, Stella Maris, directs this daily fishing.