Presbyterian, Congregational and Reformed Christians consider children of professing Christians to be members of the visible Church (the covenant community). They also consider them to be full members of the local congregation where their parents are members and members of the universal Church (the set of all true believers who make up the invisible church) unless and until they prove otherwise. Baptism is the mark of membership in the covenant of grace and in the universal church, although regeneration is not inseparably connected with baptism.