How do we know that Christian reconciliation is true?

The assurance of reconciliation in Christianity comes directly from scripture, which reveals that God sent His Son to make peace with humanity and reconcile all things through His sacrifice. Romans 8:32 emphasizes that if God did not spare His Son, He will also freely give us everything needed for salvation. The consistency in scripture from Colossians, Romans, and Ephesians confirms that God's intention is to save a specific people, His elect, through Christ’s atoning work, fundamentally aligning with the historic Reformed understanding of limited atonement.