Psalm 1:2 → Deuteronomy 17:19

Deuteronomy 17:19, the single positive command of the king-law, charges the Israelite king that his copy of the Torah "is to remain with him, and he is to read from it all the days of his life, so that he may learn to fear the LORD his God by carefully observing all the words of this instruction." The continual, lifelong reading of the torat YHWH is the safeguard for the king's heart (v. 20) — what makes him a brother-vassal under the Great King rather than a nations-king. Psalm 1:2 takes that royal mark of piety and generalizes it to every righteous person: the blessed man's "delight is in the law of the LORD, and on his law he meditates day and night." The relation is an Echo, not an allusion or quotation: the verbatim phrase "meditate day and night" (יֶהְגֶּה יוֹמָם וָלַיְלָה) that Psalm 1:2 actually carries is drawn from Joshua 1:8, and Deuteronomy 17:19 shares no distinctive lexeme with the psalm (it has "read," qara, and "all the days of his life," not hagah / yomam valaylah). What links the two is the deeper canonical pattern the Anchor-Text Network names a "gateway echo" — the Longitudinal Theme of unceasing Torah-devotion as the defining trait of the godly life, here moving by Redemptive-Historical Progression from the king's charge to every righteous Israelite (this is generalization of an office-ideal across the canon, not typology: Deut 17:19 supplies no escalating prefiguration that Psalm 1 retrospectively fills, only a continuity of theme democratized). The trajectory does not stop at democratization: the Psalter's double gateway fuses the Torah-meditating man of Psalm 1 with the anointed Son-King of Psalm 2, so the figure who reads the law "all the days of his life" and the Messiah become one — until that scroll moves from the king's hand to the King's heart ("Your law is within my heart," Ps 40:8 / Heb 10:7). The telos is not a behold-the-pattern but a behold-the-Person: the blessed man whose whole delight is the law is not finally us striving to meditate more, but Christ, in whom Torah-delight was perfect and is now offered to us as a gift — so that to savor his word day and night is to savor him, and beholding the law-loving King we are changed into his likeness.