Why is the righteousness of Christ important for salvation?

Christ's righteousness is crucial for salvation because it is the standard that God requires for acceptance into His presence. As Romans 10:5 indicates, the law demands perfect obedience, which none can achieve due to sin. Therefore, God has provided a solution through Jesus Christ, whose perfect obedience met the law's requirements. In 2 Corinthians 5:21, it is revealed that Christ was made sin for us so that His righteousness could be imputed to those who believe. This imputation provides believers with a standing before God that is not based on their own righteousness, but entirely on Christ's righteousness, ensuring their acceptance and eternal life.