Christ had to be truly human to truly save us—today’s reading presses that truth hard against every attempt to soften or redefine it (Hebrews 2:17; Romans 1:3; Galatians 4:4).

Calvin argues that the incarnation is not a symbolic idea or a philosophical abstraction, but a historical and physical reality: Christ took on real human flesh, descended from Abraham and David, subject to weakness, suffering, and death. He pushes back against early heresies that tried to make Jesus either a phantom or some kind of heavenly being merely appearing human, showing that Scripture consistently grounds Christ in our actual nature so that His work as Mediator would truly apply to us. This matters because redemption is not happening at a distance—Christ does not save humanity from the outside but from within it. Calvin then dismantles objections that misuse  ...