What does it mean to say Jesus' sacrifice was vicarious?

When we describe Jesus' sacrifice as vicarious, we affirm that He bore the penalty for sin that was rightfully ours. This doctrine reflects the belief that Christ's suffering and death satisfied God's justice on behalf of His chosen people. As described in Isaiah 53:5, 'He was wounded for our transgressions; he was bruised for our iniquities.' This illustrates how Christ took upon Himself the sins of many (Hebrews 9:28), establishing that His one act of sacrifice fully atoned for the sins of those whom God has called. Thus, His death not only showcases divine love but also serves the purpose of securing eternal redemption for His people, affirming that they are justified by faith through His vicarious atonement.