Only baptised (by complete immersion in water) believers are considered members of the ecclesia. Ordinarily, baptism follows someone making a "good confession" (cf. 1 Tim. 6:12) of their faith before two or three nominated elders of the ecclesia they are seeking to join. The good confession has to demonstrate a basic understanding of the main elements – "first principles" – of the faith of the community. The children of members are encouraged to attend Christadelphian Sunday schools and youth groups. Interaction between youth from different ecclesias is encouraged through regional and national youth gatherings, conferences and camping holidays.