Isaiah 65:17 → Isaiah 43:18-19

In the Cyrus/second-exodus oracles of Isaiah 40-48, Yahweh commands Israel, "Do not call to mind the former things (הָרִאשֹׁנוֹת, hāriʾšōnôt); pay no attention to the things of old. Behold, I am about to do something new (חֲדָשָׁה, ḥădāšâ)" (Isa 43:18-19) — the coming new exodus ("a way in the wilderness") is so great that the first exodus, the paradigmatic act of redemption, will recede from memory. Isaiah 65:17 inherits this exact former-things / new-thing schema and escalates its referent to its cosmic terminus: "For behold, I will create (בּוֹרֵא, bôrēʾ) new heavens and a new earth (שָׁמַיִם חֲדָשִׁים, šāmayim ḥădāšîm). The former things (הָרִאשֹׁנוֹת) will not be remembered, nor will they come to mind." The shared diction is load-bearing — the same technical noun hāriʾšōnôt, the same not-remembering motif, the same "behold… new" announcement — but the new thing has moved from a redemptive-historical event (Israel's restoration from exile) to the re-creation of the cosmos itself. This is Redemptive-Historical Progression within the book of Isaiah: one prophetic schema developed from the second-exodus horizon to the new-creation horizon, the seedbed (43) ripening into the consummation (65) — not typology, since there is no person, institution, or event functioning as a type-shadow of a later antitype, only the intensification of a single oracle-pattern's scope. It is also a Longitudinal Theme link: both verses sit on the canon's new-creation trajectory (Gen 1:1 → Isa 43 → Isa 65 → 2 Cor 5:17 → Rev 21:1), Isaiah's own internal preparation for the apostolic vocabulary of cosmic renewal. The telos is that the "new thing" the prophet kept promising was never finally a new road through a desert or a new political deliverance but a new heavens and earth where God Himself rejoices over His people (65:18-19) — and that new creation has already dawned in Christ (2 Cor 5:17), so that the believer who is "in Christ" is invited to stop remembering the former things and to taste now, with longing, the new world in which God is the everlasting joy — Christ not merely foreshadowed but seen as the desirable End toward whom the whole "behold, I am doing a new thing" has been straining.