Isaiah 22:22 gives Eliakim the key of David as a symbol of delegated authority over the royal household. Revelation later takes up this imagery and applies it to Christ.

The fulfillment passages listed here (Rev 3:7) illuminate the Christian application summarized as "The One given all authority to govern." The correspondence is meaningful within the New Testament portrait of Jesus, but where the New Testament does not explicitly quote this exact Isaiah verse as fulfilled, it is best described as a theological or messianic correspondence rather than claiming more precision than the biblical writers themselves state.