John 3:5 → Ezekiel 36:25-27

Jesus' declaration that one must be "born of water and the Spirit" to enter the kingdom of God draws directly on Ezekiel's new covenant promise in Ezek 36:25-27, where God declares he will sprinkle clean water (mayim tehorim) on Israel to cleanse them from all impurity and put a new spirit (ruach chadashah) within them. The structural parallel is exact: water-cleansing and spirit-impartation appear together in both texts as constituent elements of the one divine act of regeneration. Jesus does not invent a new metaphor but employs language Nicodemus, "Israel's teacher" (John 3:10), should have already known as the OT's own vocabulary for eschatological renewal. The fulfillment involves escalation: where Ezekiel anticipated a future national restoration, Jesus announces its individual and personal application available now through union with the Son of Man who will be "lifted up" (John 3:14). The connection confirms that the new birth is not a mystical concept imported from Hellenism but the covenant-renewal promised through the prophets. The method is promise-fulfillment rather than typology: Ezekiel 36:25-27 is a promise oracle — a spoken pledge of future divine action, not a historical person, event, or institution that could prefigure — and promises are fulfilled, not typed; John 3:5 announces that fulfillment, the canon-long Spirit-gives-life theme arriving at its new-covenant stage.