How do we know our redemption through Christ is true?

Scripture affirms the truth of our redemption through various passages, including Isaiah 43:1, where the Lord states, 'I have redeemed thee; I have called thee by thy name; thou art mine.' This personal declaration by God highlights the intimacy and commitment inherent in our redemption. Additionally, the sacrifice of Christ on the cross is the pivotal moment that validates our redemption, which is not just a theoretical concept but a reality grounded in the historic act of Christ’s atonement.