Revelation 13:8 → Isaiah 53:7

In the midst of the beast's reign John names the book of life "belonging to the Lamb who was slain" (tou arniou tou esphagmenou) — the slaughtered-Lamb title whose root is Isaiah 53:7, the Servant "led like a lamb to the slaughter." The phrase "from the foundation of the world" frames the Servant's slaughter as no afterthought but the eternal counsel by which the elect are kept, echoing Isaiah 53:10's "it was the LORD's will to crush Him" — the Servant's death is the deliberate saving plan of God, not the beast's triumph. The contrast is pointed: the whole earth worships the beast that was "mortally wounded" yet "healed" (13:3), a counterfeit of the truly slain Lamb who lives; only those written in the slain Lamb's book refuse the counterfeit. The telos is the security and allegiance of the persecuted: in an hour when the beast seems to win, the believer beholds the slaughtered Servant-Lamb whose death was God's eternal purpose and whose book of life cannot be unwritten, so that Christ slain-and-reigning is treasured as the safe and worthy King over against every imposter.