How do we know Jesus will judge the living and the dead?

The authority of Christ as the judge is rooted in the scriptures, particularly John 5:22, which indicates that the Father has committed all judgment to the Son. This appointment highlights the sovereignty of Christ as the mediator between God and humanity. He will exercise this role not only during the Judgment Day but throughout history, emphasizing His authority and righteousness. The assurance of this divine judgment is a core tenet of sovereign grace theology, affirming God's justice and mercy.