How do we know that Christ's substitution is true?

The concept of substitution in the atonement of Christ is foundational to Reformed theology. Just as Boaz acted as a kinsman redeemer for Ruth, Christ stands in the gap for His people. His perfect obedience to the law and His sacrificial death fulfill the requirements necessary for salvation. Scripture reveals that God is satisfied with the atoning work of Christ, as all the demands of the law have been met through His sacrifice, affirming His role as our substitute and ensuring that we are accepted by God, just as Ruth was received by Boaz.