How do we know that Christ's redemption is certain?

The certainty of Christ's redemption is rooted in the eternal plan of God, as emphasized in passages like 1 Peter 1:20, which states that Christ was foreordained before the foundation of the world. This divine plan was executed at the appointed time, demonstrating that God not only desires to redeem but has enacted His plan through the death of Christ, who was the perfect and unblemished Lamb. Additionally, Romans 8:28-30 reinforces this certainty, indicating that all things work together for the good of those who are called according to His purpose. As God's people, we can be assured that our redemption through Christ is secure and unshakeable due to the sovereign will and purpose of God.