“I, Yahweh, have called you in righteousness, and will hold your hand, and will keep you, and make you a covenant for the people, as a light for the nations; to open the blind eyes, to bring the prisoners out of the dungeon, and those who sit in darkness out of the prison.
⛓ Read Isaiah 42 forward — the whole chapter and its afterlife →Where this passage surfaces again, sorted by the strength of the link. Each kind of reuse — formal quotation, deliberate allusion, faint echo, figural pattern — carries its own mark. Follow any reference to read it in place.
Allusion3
A deliberate verbal borrowing without a citation formula.
The Servant given as 'a light to the nations' to open blind eyes underwrites the universal scope of 'light of the world.' High Coherence: John repeatedly casts Jesus in Servant terms, and the worldwide reach of the light matches Isaiah's covenant-to-the-peoples commission.
High confidenceThe Servant is given 'to open the eyes that are blind,' a commissioning that Mark sees fulfilled in Jesus' physical opening of blind eyes as a sign of his servant-messiahship—coherent with the suffering Son of Man developed just after (v.31).
Medium confidence2:19 'a guide of the blind, a light to those in darkness' draws on the Servant's vocation 'a light to the nations, to open the eyes that are blind, to bring out... those who sit in darkness' — Israel's self-understanding as light to the Gentiles, which Paul ironizes.
Medium confidenceEcho1
A fainter, low-volume reuse, carried by recurrence or thematic coherence.
The servant given 'as a light to the nations, to open eyes that are blind' resonates with Jesus as the light dawning on Gentile Galilee. Faint thematic recurrence.
Low confidence