Catholic Commentary
The Overflowing Abundance of Wisdom: The River Imagery
25It is he who makes wisdom abundant, as Pishon, and as Tigris in the days of first fruits.26He makes understanding full as the Euphrates, and as the Jordan in the days of harvest,27who makes instruction shine forth as the light, as Gihon in the days of vintage.28The first man didn’t know her perfectly. In like manner, the last has not explored her.29For her thoughts are filled from the sea, and her counsels from the great deep.
Wisdom floods like a river in springtime—inexhaustibly abundant, yet no human being, not even Adam in Paradise, has ever fully explored her depths.
In these verses, Ben Sira employs the imagery of the great rivers of the ancient world — the Pishon, Tigris, Euphrates, Jordan, and Gihon — to convey the inexhaustible, life-giving abundance of divine Wisdom. He then strikes a note of sublime humility: no human being, from the first Adam to the last, has ever fully plumbed Wisdom's depths, for her thoughts are as vast as the sea and as unfathomable as the primordial deep. Together, these verses form a doxology of Wisdom's infinite superabundance, inviting the reader into an ever-deepening pursuit that will never reach a final terminus in this life.
Verse 25 — Wisdom as the Pishon and the Tigris in the days of first fruits: Ben Sira opens the river sequence by invoking the Pishon, one of the four rivers said in Genesis 2:11 to flow from Eden, and the Tigris, the great Mesopotamian river identified in Genesis 2:14 with the garden's eastern boundary. The phrase "in the days of first fruits" evokes the season of Shavuot, when the rivers of the ancient Near East surged with spring floodwaters brought by melting snowpack from the northern mountains. The comparison is deliberate: just as these rivers overflow their banks at the appointed feast, divine Wisdom "overflows" — the Greek πλήθει, fullness or abundance — at the seasons of God's own choosing. The choice of the Pishon, a river whose precise identity was already debated in antiquity, is not incidental; its air of mystery signals from the outset that Wisdom, like this half-known river, exceeds human cartography.
Verse 26 — Understanding full as the Euphrates and the Jordan at harvest: The Euphrates, the grandest of the Mesopotamian rivers and a symbol of empire, worldly power, and breadth throughout the Hebrew Bible, is here subordinated entirely to Wisdom's service. Its fullness at harvest time — when the summer sun has melted distant snows and floods crest the plains — pictures understanding (σύνεσις, the capacity to perceive connections and relationships) as something that nourishes and irrigates the whole of human intellectual and spiritual life. The Jordan "in the days of harvest" would have struck any Jewish reader with immediate resonance: this is precisely the season in which Joshua led Israel across the flooded Jordan into the Promised Land (Joshua 3:15). The harvest-swollen Jordan that parted before the Ark of the Covenant becomes, in Ben Sira's typology, an image of Wisdom as the divine force that opens passages into territories of understanding that would otherwise be impossible to cross.
Verse 27 — Instruction shining as light, as the Gihon in the days of vintage: The Gihon, the spring beneath Jerusalem that fed the city of David and whose waters Hezekiah channeled through his famous tunnel (2 Kings 20:20), here represents Wisdom's instruction (παιδεία, the Greek term encompassing both education and moral formation). That instruction "shines forth as the light" bridges the water imagery with the light imagery pervasive in Israel's Wisdom literature, anticipating the great Johannine identification of Word, Light, and Life. The "days of vintage" — the autumn grape harvest — complete the liturgical calendar implied across all three verses: Shavuot, grain harvest, grape harvest correspond to the three great pilgrimage feasts of Israel (Passover, Shavuot, Sukkoth). Ben Sira has thus embedded a full liturgical year within his river imagery, suggesting that Wisdom's abundance is not episodic but continuous across all of Israel's sacred time.
Catholic tradition reads Sirach 24 as one of the preeminent Old Testament foundations for the theology of the Eternal Word and, through the Word, for the theology of the Church. The Catechism of the Catholic Church (§721) draws on the Wisdom literature to illuminate how the Holy Spirit "prepared" Israel to receive the Word made flesh, and the patristic tradition was nearly unanimous in identifying the Wisdom of Sirach 24 with the Second Person of the Trinity. Origen, in his De Principiis, treats the inexhaustibility of Scripture — which is the written form of Wisdom — as a direct consequence of its divine origin: "The treasures of wisdom and knowledge are hidden in the Word of God" (De Princ. IV.1). The river imagery of these specific verses was taken up by Saint Ambrose in his De Spiritu Sancto, where the four rivers of Paradise flowing from a single source became an image of the one Spirit poured out through multiple charisms and sacraments.
Saint Thomas Aquinas, in his Prologue to the Commentary on the Sentences, quotes the Wisdom literature (including Sirach) to argue that theology is a scientia that is never exhausted because its formal object — God — is infinite. The "inexplorable" character of Wisdom in verse 28 thus underpins the Catholic insistence that divine revelation, while complete in Christ (Dei Verbum §4), is never fully comprehended by any one theologian, school, or era. The Dogmatic Constitution Dei Verbum (§8) explicitly teaches that the Church's understanding of the faith "grows" through contemplation and study, precisely because the depths of revelation are as the "great deep" of verse 29.
The liturgical structure embedded in Ben Sira's three river-comparisons (first fruits, harvest, vintage) speaks directly to the Catholic sacramental and liturgical vision: grace does not arrive in a single moment but flows continuously through the Church's liturgical year, ever abundant, ever seasonally renewed.
For the contemporary Catholic, these verses offer a powerful corrective to two opposite temptations that afflict spiritual life today. The first is the temptation of intellectual satiation — the feeling that one has "figured out" the faith, that no further study, prayer, or conversion is needed. Verse 28 is a direct rebuke: if Adam in Paradise did not fully know Wisdom, neither have you. The second temptation is discouragement — the sense that the faith is too vast, too demanding, too intellectually overwhelming to be worth pursuing deeply. Ben Sira's river imagery answers this: Wisdom does not trickle; she floods. The abundance is not a barrier but an invitation.
Practically, this passage invites Catholics to approach Scripture, the Catechism, and the writings of the saints not as texts to be "completed" but as rivers to be entered. A concrete application: instead of reading to finish, read to deepen — return to a single verse of Scripture daily, as the Lectio Divina tradition recommends, trusting that each season of life (the "first fruits," the "harvest," the "vintage" of one's spiritual age) will reveal new currents in the same words. The inexhaustibility of Wisdom is not a problem to solve but a relationship to inhabit.
Verse 28 — The first man did not know her perfectly; the last has not explored her: This verse pivots from exaltation to humility. "The first man" (ὁ πρῶτος) almost certainly refers to Adam — a reading confirmed by the broader context of Sirach 24's identification of Wisdom with the Torah given at Sinai, and by Ben Sira's extended treatment of Adam in Sirach 49:16. Yet even Adam, walking in the garden with God and breathing the same air as Wisdom's very dwelling place, did not know her "perfectly" (οὐκ ἐτελεσφόρησεν). The verb carries the sense of bringing to completion or full fruit — Adam could not bring his knowledge of Wisdom to full term. "The last" — whether understood as the final person in history or the eschatological generation — has likewise not "explored" (ἐξιχνίασεν, from the word for tracking footprints or tracing a path) her. The verse thus frames the entire span of human history between two bookends of reverent incompleteness.
Verse 29 — Her thoughts filled from the sea, her counsels from the great deep: The climax of the passage reaches back to the primordial cosmological language of Genesis 1:2, where the "deep" (תְּהוֹם, tehom) underlies all of creation. Wisdom's "thoughts" (διανοήματα) and "counsels" (βουλαί) are not merely abundant; they share the ontological character of the sea and the abyss — they are the matrix from which all created order emerges. This is not pantheism but a daring affirmation that Wisdom, identified with the Torah and ultimately with the eternal Word of God, is co-extensive in depth with the very ground of being. No single mind, no single generation, no single tradition can exhaust what flows from so infinite a source.