Hebrew Key Terms:
Context: Isaiah 55 opens the climactic invitation section of the Servant Songs cycle (Isa 40-55). The immediate backdrop is the Fourth Servant Song (52:13-53:12) — the Servant's atoning death — and the barren-woman promise (54:1). Having purchased redemption, the Servant's work is now freely distributed: "Ho! Everyone who thirsts, come to the waters; and you who have no money, come, buy and eat! Come, buy wine and milk without money and without price." The paradox is calculated: buy without money. The Hebrew shabar (buy grain) paired with the denial of keseph (silver) establishes the free-grace vocabulary the NT will appropriate. The invitation is universal in scope (hoy kol, "Ho, everyone") and free in cost, grounded in the Servant's payment already accomplished in the preceding chapter. Verses 1-5 universalize the Davidic covenant; verses 6-7 call for repentance; verses 8-11 ground the promise in God's reliable word; verses 12-13 paint the new-creation picture. The chapter is the OT's most explicit gospel-call.
OT-to-OT Development:
Connections:
Christological Connection: Isaiah 55:1 is the direct verbal substrate for Jesus' own invitation and for Revelation's closing summons. Rev 22:17 quotes Isa 55:1 almost verbatim (δωρεάν, "freely, without price") and places it on the lips of the Spirit and the Bride as the Bible's final evangelistic cry — a deliberate canonical bookend with Isaiah. Jesus' John 7:37 cry ("if anyone thirsts, let him come to Me") replaces the implicit OT subject (come to Yahweh, the fountain of Jer 2:13) with the explicit christological subject (come to Me) — a staggering identity claim: Jesus positions Himself as the fountain Yahweh declared Himself to be. The "without price" logic of Isa 55:1 is funded by the price Christ paid in Isa 53: the Servant's substitutionary atonement ("he was pierced for our transgressions," 53:5) is what allows the invitation to be free ("without money and without price," 55:1). This is gospel-logic in its purest OT form: the cost is borne by the Servant so the thirsty may drink without cost. The escalation: Isaiah invites to the waters → Christ identifies Himself as those waters → Revelation invites to the spring of the water of life flowing from the throne. What Isaiah offered freely because the Servant would pay, Christ now offers freely because He has paid.
Connection Method(s): Promise-Fulfillment (primary) + Contrast — Isaiah's free invitation to the thirsty funded by the Servant's atoning payment (Isa 53 → 55) directly underwrites Jesus' invitation (John 7:37) and Revelation's closing summons (Rev 22:17); the gospel's "without price" is rooted in Isaiah's vocabulary. Contrast with Jeremiah 2:13's broken cisterns: Isaiah invites; Israel refuses; Christ renews the invitation.
Trajectory Table: 098 - Living Water (Spirit and Life)