How do we know Christ is the judge in the final judgment?

Christ is designated as the judge in the final judgment as evidenced in John 5:22, where it states that the Father has committed all judgment to the Son. This role is fitting because Christ, being fully God and fully man, understands the human experience and fulfills the law completely. His judgment will be based on His own righteousness, which is the standard for all. Thus, believers can approach this judgment with confidence, knowing that their justification is rooted in Christ's finished work.