How do we know Jesus is the ultimate intercessor?

In Isaiah 59:16, we learn that God looked for a mediator whom He could appoint for salvation but found none; thus, His own arm brought salvation. This prophecy points directly to Jesus Christ, who fulfills the role of the ultimate intercessor. Through His life, death, and resurrection, Jesus stands as our mediator, bridging the gap between a holy God and sinful humanity. His righteousness allows Him to be the perfect representative for us, ensuring that through faith in Him, we are presented faultless before God's glory.