How do we know that Christ has authority to judge?

The authority of Christ to judge stems from His unique relationship with the Father and His successful completion of the work the Father sent Him to accomplish. This judgment authority is granted to Him because He was faithful as our Redeemer. In John 5:27, we see that it is explicitly stated that the Father has bestowed this authority upon the Son because of His role in salvation. Throughout Scripture, we witness His authority demonstrated through miraculous works, teaching, and ultimately, through His sacrificial death and resurrection. These actions reveal His mastery over life, death, and judgment, which reinforces His rightful authority as our Savior and Judge.