How do we know that Christ is the only acceptable sacrifice?

The belief in Christ as the singular acceptable sacrifice is founded on a multitude of scriptural affirmations. Hebrews 9:14 asserts that Christ offered Himself without spot to God, fulfilling the requirements for a divine sacrifice through His sinless life. Furthermore, in Galatians 5:2, Paul emphasizes that any reliance on works nullifies the grace received through Christ, reinforcing that He is the only path to salvation. This understanding is crucial in Reformed theology, where the sufficiency and exclusivity of Christ's atonement are central. The entirety of Scripture harmonizes to point believers away from their works and towards Christ alone for their justification.