How do we know Jesus died for our sins?

The certainty of Jesus dying for our sins is rooted in Scripture, specifically in Galatians 3:13, which states that 'Christ hath redeemed us from the curse of the law, being made a curse for us.' This highlights the substitutionary nature of His death, where He bore the penalty for our sins, fulfilling the requirement of the law that we could not meet. As declared in Romans 8:1, those who are in Christ Jesus cannot face condemnation because He bore the curse on their behalf, thus securing their salvation.