Catholic Commentary
David's Son and David's Lord: The Question About the Messiah
41He said to them, “Why do they say that the Christ is David’s son?42David himself says in the book of Psalms,43until I make your enemies the footstool of your feet.”’44“David therefore calls him Lord, so how is he his son?”
David calls his own descendant "Lord"—a paradox that shattered Jewish messianic expectation and revealed that the promised Christ would be both fully human and fully divine.
In this brief but theologically electrifying exchange, Jesus turns the tables on his questioners by posing a riddle from Psalm 110: if the Messiah is merely David's descendant, why does David himself call him "Lord"? Far from denying his Davidic descent, Jesus presses his audience—and the reader—to recognize that the promised Christ is simultaneously son of David by flesh and Lord of David by divine nature. The question is left unanswered, pointing to a mystery that only the Incarnation can resolve.
Verse 41 — "Why do they say the Christ is David's son?" Jesus has just silenced the chief priests, scribes, Sadducees, and legal experts with his own answers (Luke 20:1–40). Now he seizes the initiative and becomes the questioner. The phrase "they say" (λέγουσιν) is deliberately impersonal — Jesus does not attack the teaching directly but invites reflection on its adequacy. The expectation of a Davidic Messiah was deeply embedded in Second Temple Judaism, grounded in texts like 2 Samuel 7:12–14 ("I will raise up your offspring after you…") and reinforced by prophetic hope (Isa 11:1; Jer 23:5). Jesus does not reject this Davidic lineage — Luke's own Gospel has already established it emphatically (Luke 1:32; 2:4; 3:31) — but he signals that "son of David" is a radically incomplete description. It is not wrong; it is simply not enough.
Verse 42 — "David himself says in the book of Psalms…" The appeal to David as the author of Psalm 110 is striking. Luke specifies "the book of Psalms" (ἐν βίβλῳ ψαλμῶν), a formula that underscores canonical authority. In the ancient world, to cite the author is to invoke the highest witness: David, Israel's greatest king, is himself testifying against an exclusively human, royal reading of the Messiah. The Davidic authorship of Psalm 110 was accepted universally in Jesus' day and is assumed here as a premise of the argument — the logic collapses entirely if David did not write the Psalm. Jesus is not merely citing a proof-text; he is exposing a contradiction within the reigning messianic framework itself. The quoted words, "The Lord said to my Lord," represent God (YHWH) addressing a second figure as אֲדֹנִי (adonai) — the same honorific used for God himself in prayer. David, the reigning king over all Israel, calls this figure his superior.
Verse 43 — "…until I make your enemies the footstool of your feet." The imagery of enemies as a "footstool" reflects the ancient Near Eastern iconography of conquest, where victorious kings placed their feet on the necks or backs of defeated foes. But Psalm 110's vision is cosmic in scale: this enthroned figure is invited to share God's own throne ("Sit at my right hand"), an honor given to no human king in the Old Testament. The "until" (ἕως ἄν) carries eschatological weight — it points to a future, definitive, and total victory still unfolding. For Luke's readers after the Resurrection and Ascension (cf. Acts 2:33–36), this "until" has already been inaugurated: the risen Christ now reigns at the Father's right hand, and his enemies are being subdued through the mission of the Church.
Verse 44 — "David therefore calls him Lord, so how is he his son?" This is the rhetorical climax — a classic rabbinic (from lesser to greater) move, pressed into service as a paradox. The logic is tight: in Davidic culture, fathers do not call their sons "Lord." Precedence, honor, and authority flow downward from ancestor to descendant. Yet David — the greatest of Israel's kings, a man after God's own heart — reverses this protocol and bows before his own offspring. The only resolution to this paradox is the one the Gospel itself supplies: this son of David is also the eternal Son of God. As Paul will frame it in Romans 1:3–4, Christ was "descended from David according to the flesh and designated Son of God in power… by his resurrection from the dead." Jesus leaves his audience in stunned silence (Luke 20:40 notes no one dared ask further questions), not because the question is unanswerable, but because the answer requires a revolution in understanding — one the disciples themselves will not fully grasp until the Resurrection.
Catholic tradition brings distinctive depth to this passage on several fronts.
The Two Natures, One Person: The Catechism of the Catholic Church (§436–440) treats Psalm 110:1 as a foundational messianic text pointing to Christ's divine Sonship. CCC §663 directly applies the "right hand of the Father" image to the Ascension: "Christ's lordship over the world and history" has been definitively established. The paradox Jesus poses — son yet Lord — is the hermeneutical hinge between the Old and New Covenants, and its resolution is the doctrine of the Incarnation: one divine Person subsisting in two natures (Council of Chalcedon, 451 AD). Jesus is truly David's son because he truly assumed human flesh through Mary (Luke 1:32); he is truly David's Lord because he is the eternal Word (John 1:1).
The Church Fathers on Psalm 110: Justin Martyr (Dialogue with Trypho, ch. 32–33) was one of the earliest to deploy Psalm 110 apologetically, arguing that its vision of a divine co-enthronement was inexplicable apart from Christ. St. Augustine (Enarrationes in Psalmos, Ps. 110) meditates at length on the two "Lords" — YHWH and Adonai — as a veiled disclosure of Trinitarian life within the Old Testament. St. Thomas Aquinas (Summa Theologiae III, q.22) sees the Psalm as prophesying Christ's eternal priesthood (citing Ps 110:4, "You are a priest forever") alongside his kingship, noting that both dignities belong to him not by adoption but by eternal generation.
Davidic Kingship Fulfilled in Christ: Vatican II's Dei Verbum (§16) articulates the principle operative here: "God, the inspirer and author of both Testaments, wisely arranged that the New Testament be hidden in the Old and the Old be made manifest in the New." David's unwitting homage to his own descendant is a supreme instance of this providential arrangement — the Old Testament author becoming, without fully understanding it, a witness to the divine identity of the one he prefigures.
Contemporary Catholics often encounter a domesticated Jesus — a wise teacher, a social reformer, a moral exemplar. This passage forcefully resists that reduction. Jesus here claims, through the mouth of Israel's greatest king, a dignity that simply cannot belong to any merely human figure. The practical challenge this poses is personal: Who do I, in practice, treat Jesus as being?
Catholic devotional life — the Mass, the Rosary, Eucharistic adoration — is structured around the conviction that the one worshipped is genuinely Lord: not a useful spiritual resource but the Sovereign before whom even David bowed. When Catholics address Jesus as "Lord" (Κύριε, Kyrie) in the Mass, they are implicitly confessing the same paradox this passage raises: a man born of woman, of a specific bloodline, in a specific time and place, who is nevertheless Lord of all history and every human life.
For those experiencing a dry or rote faith, this passage is an invitation to sit with the sheer strangeness of the Incarnation: that God chose to enter his own creation from within, as a descendant of the very king who worshipped him. This is not a comfortable, manageable deity. The correct response to this passage is awe — and then the radical realignment of priorities that genuine Lordship demands.
Typological and Spiritual Senses: Typologically, David functions here as a prophetic figure whose royal dignity points beyond itself toward the one true King. The throne of David is not simply a political institution but a sacred type (τύπος) of the eternal kingship of Christ. The spiritual sense (sensus plenior) of Psalm 110 is Christological through and through: the "Lord" to whom God speaks is the pre-existent Word who will take flesh as Mary's son and David's descendant, but whose lordship encompasses all creation. The "footstool" motif ultimately points to the Cross — the moment when, paradoxically, in apparent defeat, Christ achieves the definitive conquest of sin and death.