How do we know the doctrine of vicarious sacrifice is true?

We know the doctrine of vicarious sacrifice is true because it is rooted in Scripture's presentation of Christ's purpose and mission. 2 Corinthians 5:21 states, 'He was made sin for us, who knew no sin,' signifying that Jesus took upon Himself the penalty and guilt of our sins. Additionally, Galatians 3:13 reinforces this by proclaiming that 'Christ has redeemed us from the curse of the law, being made a curse for us.' Such scriptural affirmations provide a firm foundation for believing in Christ's substitutionary atonement, highlighting that without this doctrine, the mysteries of His suffering cannot be adequately explained.