What does the Bible say about Christ being our righteousness?

The doctrine of Christ as our righteousness is foundational to the Reformed faith, highlighting that human efforts or the law cannot secure acceptance with God. Scriptures such as Romans 10:4 affirm that Christ is the end of the law for righteousness to everyone who believes. This indicates that our standing before God is solely based on Christ's obedience and sacrifice, not our own merit. By believing in Him, we receive His righteousness credited to us, ensuring our acceptance in God's sight, as articulated in 2 Corinthians 5:21, 'For our sake he made him to be sin who knew no sin, so that in him we might become the righteousness of God.'