How do we know the doctrine of the atonement is true?

The doctrine of atonement is affirmed in Scripture, especially in Isaiah 53:5-6, where it prophesies that the Messiah would bear our iniquities and be crushed for our transgressions. John 1:29 also recognizes Jesus as the 'Lamb of God who takes away the sin of the world,' confirming His role as the ultimate sacrifice. The theological understanding is that Christ's death was not merely an event of compassion but a divine plan for redemption, fulfilling ancient prophecies and establishing a new covenant. This understanding is critical, as it emphasizes that salvation is a gift secured through His sacrificial love and grace.