New birth is through the Word and Spirit. The word of the gospel is about the Word who became flesh, Jesus Christ our Lord (John 1:14). New birth is through faith in Christ who died for our sins and was raised from the dead (1 Corinthians 15:1-4). The Holy Spirit, who inspired the written word of God, brings new birth through the gospel of Christ.
New birth transforms, cleanses, and renews believers (Romans 12:2; Ephesians 2:4; 1 John 1:7). Our mind, will and emotions are transformed and renewed. We are cleansed of all sin. It is by the Holy Spirit who regenerates us, so we become a new creation in Christ (2 Corinthians 5:17).
Before new birth, we were spiritually dead, but now made alive in Christ Jesus by the power of the Holy Spirit. We witness an actual miracle of God in your life. New birth is the power of God unto salvation, through the gospel of our Lord Jesus Christ (Romans 1:16; 10:9).
The same Spirit of God who moved in creation, moves in our new birth. That's when we are truly born again. New birth is regeneration. If anyone is in Christ, he has become a new creation (2 Corinthians 5:17). The Holy Spirit regenerates the heart, which is the mind, will and emotions (Romans 12:2). The gospel comes to us not in word only, but in power and much assurance through the Holy Spirit (1 Thessalonians. 1:5).