We are sometimes called "born again" Christians. This is from a chapter in the Bible (chapter 3 of John's gospel) where Jesus explains that you can't just drift in to becoming a Christian; you're not a Christian just because your parents are or because you were christened or because you went to Sunday school.

richmondparkchurch.org.uk an evangelical pentecostal church in Boscombe, Bournemouth, Dorset, UK.