How do we know true Christians are born again?

The concept of being 'born again' or regenerated is central to understanding what it means to be a true Christian. In John 3:3, Jesus states that unless one is born again, they cannot see the kingdom of God. This new birth is an act of the Holy Spirit, who transforms the heart from a heart of stone to a heart of flesh (Ezekiel 36:26). The evidence of this transformation is seen in a person's faith in Jesus Christ and their desire to follow Him. Therefore, true Christians exhibit changed lives and a new nature that seeks to honor God, demonstrating that they have been truly born again.