How can we confidently say that Christ is our righteousness?

Confidence in Christ as our righteousness stems from the clear testimony of Scripture that portrays Him as our substitute, the one who fulfills the law on our behalf. As indicated in 1 John 2:1-2, Christ is described as the 'advocate' who intercedes for believers, and through His sacrificial death, He has taken away our sins and satisfied divine justice. This means that our justification—being declared righteous before God—is solely based on Christ's righteousness imputed to us, not our works. Therefore, our hope of salvation rests firmly in the perfect work of Christ, assuring us that we are made right with God through faith.