This is the miracle of the new birth (see John 3:3). Many people, when questioned about their faith, will say that they have been born again. They confuse it with being sprinkled as a baby or having a change of mind about God. So make sure you explain that the new birth comes through understanding the nature of sin and exercising “repentance toward God and faith toward our Lord Jesus Christ” (Acts 20:21) for eternal salvation. It takes place when God gives a new heart with new desires, gives a new spirit, and makes a sinner a new creature in Christ (see 2 Cor. 5:17). Without the new birth (being born again), there is no salvation. See also Ezek. 18:31; 36:26,27; Psa. 51:10,11.
Ezekiel 11:19 Then I will give them one heart, and I will put a new spirit within them, and takethe stony heart out of their flesh, and give them a heart of flesh,