Unfortunately, mainline Christians have generally allowed their more conservative Christian brothers and sisters to have a near monopoly on "born again" language. . . . When being born again leads to a rigid kind of righteousness, judgmentalism, and sharp boundaries between an in-group and an out-group, its either not a genuine born-again experience or it has a lot of static in it. Being born again is a very rich and comprehensive notion. Rightly understood, it is at the very center of the New Testament and the Christian life. We need to reclaim it.
— Marcus J. Borg, The Heart of Christianity