Christ is our righteousness because He is the perfect fulfillment of the law and our substitute before God.
The doctrine of Christ being our righteousness is foundational to Reformed theology and is articulated throughout the New Testament. In Romans 10:4, Paul emphasizes that Christ is the end of the law for righteousness to everyone who believes. This means that through His perfect obedience and sacrificial death, Christ fulfills all the requirements of the law on our behalf. As believers, we are credited with His righteousness, which satisfies God's justice and allows us to stand justified before Him. Our own attempts at righteousness are likened to filthy rags, but in Christ, we find complete acceptance before God due to His perfect work.
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