Jesus' intercession at the right hand of the Father means he continually presents his finished work as our legal representative, ensuring that all the benefits of his sacrifice are applied to believers. This exaltation proves that his work is accepted and that he remains our active Advocate before God.
Christ’s intercession is not a plea of weakness, but a declaration of his finished authority. As our Mediator, he appears in his humanity before the Father, grounding his appeal in the perfect merit of his obedience and sacrifice. According to the 1689 LBCF Ch.8 §4, Jesus underwent the punishment due to us and rose from the dead, ascending to the right hand of the Father to secure our standing. Because he is there, he answers every accusation brought against us. As described in the Westminster Larger Catechism Q.55, he procures for us 'quiet of conscience' and 'access with boldness to the throne of grace,' even amidst our daily failures, because we are accepted in him.
The Scriptures affirm that this intercession is the reason for our eternal security. Because he ever lives to make intercession, our salvation is not dependent on our wavering obedience, but on his unchanging presence. As the Apostle writes, Hebrews 7:25, 'Wherefore also he is able to save to the uttermost them that draw near unto God through him, seeing he ever liveth to make intercession for them.' This is the gospel: you are more loved in Christ than you dared hope, for your Savior represents you perfectly even when you feel most flawed.