Why is spiritual regeneration necessary for salvation?

John 3:3 emphasizes the necessity of being 'born again' to enter the kingdom of God, indicating that human beings are inherently dead in their sins and cannot come to God unless He draws them. This regeneration is an act of divine grace whereby God imparts spiritual life to the believer, enabling them to receive and believe the gospel. Furthermore, Romans 8:7 explains that the carnal mind is enmity against God and is not subject to His law. Therefore, without the miraculous work of the Holy Spirit, a person is spiritually blind and lost, reinforcing the need for God’s prior act of regeneration in the life of the believer.