Later text
Isaiah 40:21BSB
Do you not know? Have you not heard? Has it not been declared to you from the beginning? Have you not understood since the foundation of the earth?
Intertextuality Pair
Echo
Later text
Isaiah 40:21BSB
Do you not know? Have you not heard? Has it not been declared to you from the beginning? Have you not understood since the foundation of the earth?
Earlier text
Genesis 1:1BSB
In the beginning God created the heavens and the earth.
Opening the great comfort-chapter's idol-polemic, Isaiah fires four rhetorical questions at Jacob: "Do you not know? Have you not heard? Has it not been declared to you from the beginning? Have you not understood since the foundation of the earth?" (Isa 40:21). The original force is rebuke-by-appeal: the truth that Yahweh alone is Creator is not esoteric but has been knowable "from the beginning" (mērōʾš) and "since the foundations of the earth" (môsedôt hāʾāreṣ) — that is, ever since the creation event itself. This is the setup verse of the same pericope that 40:26 climaxes ("Lift up your eyes... Who created all these?"), so 40:21's twin temporal markers reach back to the creation account Genesis 1:1 narrates, presupposing the Gen 1:1 creator-frame as the bedrock datum every Israelite should have known. The link is honestly an Echo, and a faint one: 40:21 has neither the bara' verb nor the heaven-and-earth merism of Gen 1:1, and "the foundations of the earth" is a creation-language formula shared with Psalm 102:25, Isaiah 48:13, and Job 38:4 rather than a distinctive verbal tie to Gen 1:1 alone — which is precisely why it is the lower-priority companion to the firmer 40:26 echo within the Isaian creation-cluster (40:26, 40:28, 42:5, 45:18). The method is redemptive-historical progression and longitudinal theme, not typology (anti-default: Gen 1:1 is a premise being appealed to, not a type of Christ — there is no correspondence-plus-escalation pattern, only a creation-truth being pressed forward). The telos is sight unto savoring: Isaiah's point is that the people's despair ("my way is hidden from the LORD," 40:27) is a failure to behold the Creator they have always known — and canonically that Creator is the Son "through whom all things were made" (John 1:3), so the answer to weary forgetfulness is to lift the veil and see Christ the Creator as so faithful and inexhaustible that beholding Him becomes the soul's renewed strength (40:31), not merely its required orthodoxy.