How can Christians be assured of their freedom from sin?

The assurance of freedom from sin lies in the completed work of Jesus Christ on the cross. As stated in Romans 6:22, we have been set free from sin and have become slaves to God, leading to holiness and eternal life. This transformation is possible because the Holy Spirit works in believers, enabling them to live according to God's will. Additionally, our identity as children of God grants us the right to claim this freedom, as indicated in John 1:12, where it states that those who believe in Him are given the right to become children of God. Thus, our assurance rests not on our performance but on Christ's redemptive work and our acceptance of His grace.