How do we know that we are redeemed?

In Acts 20:28, Paul states that God purchased the church with His own blood, confirming that our redemption is not based on our worth but on Christ's sacrificial love. This doctrine is the cornerstone of our assurance, as Ephesians 1:7 tells us that in Him we have redemption through His blood, the forgiveness of sins. Understanding that we belong to Christ and that He has paid the ultimate price for our sins provides deep comfort, knowing that we are His and that He holds responsibility for us.