Context: Psalm 72 is a royal psalm (superscription "Of Solomon" or "For Solomon"), functioning as a prayer for the Davidic king and, by Book II's closing doxology (v. 18-20), as the concluding prayer of "the prayers of David son of Jesse." Verses 1-17 describe the ideal king's reign — righteous judgment (vv. 1-4), fertility of the land (vv. 5-7), universal dominion from sea to sea (vv. 8-11), deliverance of the poor (vv. 12-14), and lasting prosperity (vv. 15-17). Verse 17 is the climactic benediction: "May his name endure forever, his fame continue as long as the sun! May people be blessed in him, all nations call him blessed!" The italicized clause is a verbatim reapplication of the Abrahamic blessing-formula from Genesis 12:3 and Genesis 22:18 — now attached to the Davidic king. The Hebrew employs the Hithpael reflexive/passive (וְיִתְבָּרְכוּ בוֹ) — the same grammatical form as Gen 12:3 and 22:18 — creating an unmistakable canonical link. The psalmist is doing OT-internal exegesis: the blessing promised through Abraham's seed flows through David's greater son. No other OT text so clearly merges the Abrahamic-blessing-to-the-nations promise with Davidic-royal fulfillment. Schnittjer identifies Ps 72:17 as the single most important OT-to-OT exegetical bridge between Abrahamic covenant and Davidic covenant in their messianic convergence. Beale treats the psalm as the climactic royal prayer of Book II.
Hebrew Key Terms:
OT-to-OT Development: Psalm 72:17 draws Gen 12:3 / 22:18 forward into Davidic-royal context. The Hithpael bless-in-him / yitbārĕkû vô is the exact verbal form of Gen 22:18, making the dependence explicit. Isaiah 9:6-7 extends the Davidic-ruler picture with "his name shall be called Wonderful Counselor… of the increase of his government and peace there will be no end." Isaiah 11:10 attaches nations-seeking to the root of Jesse: "the root of Jesse… him shall the nations inquire." Zechariah 9:10 reprises "his rule shall be from sea to sea, and from the River to the ends of the earth" — essentially Ps 72:8. Micah 7:20 closes the prophets with a direct appeal to the Abrahamic covenant.
Connections:
Christological Connection: Psalm 72:17 is the OT's pivotal text fusing Abrahamic and Davidic covenantal trajectories into a single messianic expectation. The Christological logic has three moves. First, the psalm performs an explicit OT-internal exegetical act: the Abrahamic blessing-formula of Gen 12:3 and 22:18, originally given through Abraham's seed, is now reassigned to the Davidic king. This is not the psalmist inventing new theology but recognizing what the Abrahamic covenant always intended — the kingly character of Abraham's seed. Genesis 17:6 had already promised kings would come from Abraham ("kings shall come from you"), and Genesis 49:10 ("the scepter shall not depart from Judah… until Shiloh comes, and to him shall be the obedience of the peoples") had specified that a royal-messianic figure from Judah would gather the nations. Psalm 72:17 stitches these together: the Abrahamic nations-blessing flows through the Judean-Davidic king. Second, the universal scope ("all nations") means no merely local Davidic king can fulfill this. Solomon in his zenith ruled to the Euphrates (1 Kings 4:21) — a foreshadow — but never did all nations call him blessed. The psalm's fulfillment requires a Davidic king whose reign is genuinely universal and eternal ("as long as the sun"). Only Jesus fits. Luke 1:32-33 announces: "He will be great and will be called the Son of the Most High. And the Lord God will give to him the throne of his father David, and he will reign over the house of Jacob forever, and of his kingdom there will be no end." Third, the NT explicitly converges Abraham-and-David on Jesus. Matthew opens his Gospel with this double-genealogical identification: "The book of the genealogy of Jesus Christ, the son of David, the son of Abraham" (Matthew 1:1) — Abraham and David are the two covenantal anchors Matthew tracks. Peter at Acts 3:25-26 explicitly cites Gen 12:3 / 22:18 and identifies Jesus as the seed in whom the Abrahamic blessing arrives. Revelation 5:5 identifies Christ as "the Lion of the tribe of Judah, the Root of David" — and the Abrahamic-Davidic multinational multitude of Revelation 7:9 sings His blessing. The escalation is categorical: Solomon's Empire foreshadowed; Christ's cosmic reign fulfills. Already: Christ is enthroned as David's greater son; the nations are being gathered under His name. Not yet: the full reign of peace — "in his days may the righteous flourish, and peace abound, till the moon be no more" (Ps 72:7) — awaits the consummation. Vos calls Psalm 72 "the fullest prophetic blending of Abrahamic blessing and Davidic kingship the OT offers."
Connection Method(s): Promise-Fulfillment (primary) + Redemptive-Historical Progression — Ps 72:17 performs the OT-internal exegetical move that anchors Abrahamic-to-Davidic messianic fulfillment; the nations-blessed formula is taken from Gen 12:3 / 22:18 and reapplied to the Davidic king, fulfilled decisively in Christ (Matt 1:1; Acts 3:25-26; Rev 5:5; 7:9). Also Longitudinal Theme (Blessing-to-the-Nations / Davidic Kingdom) — this is the canonical hinge where the two trajectories converge.
ANTI-DEFAULT CHECK: Promise-Fulfillment is primary because the psalm verbally transfers the Gen 12:3 / 22:18 promise to the Davidic king, and the NT identifies Christ as the fulfillment of both covenantal lines. Redemptive-Historical Progression is operative because the psalm marks a critical advance in the canon's messianic development. Not primarily typology, though the Davidic king can be viewed as a type of Christ.
Trajectory Table: 003 - Abraham (Father of Faith)