Why is it important that the Lamb of God redeems His people?

Redemption is crucial in a Christian's understanding of salvation, as it signifies the act of Christ paying the price for His people. Revelation 5:9 highlights that Christ was slain and by His blood has redeemed people for God from every tribe and language and nation. This underscores the concept of substitutionary atonement where Christ's death satisfies God's justice, allowing for reconciliation between God and humanity. Without Christ's redemptive work, no one could be saved, as Ephesians 1:4-5 explains that God's choosing and predestining of His people is accomplished through the Lamb, safeguarding their salvation.