We have someone who has been coming to our church for some years and has shown a desire to be an active participant in our church. She sees herself as belonging to our church. We ran into some problems when we began re-enforcing our Safe Church Policy which requires membership in our church. She has refused to become a member stating that she does not see any scriptural foundation for membership.
While we value membership in the CRC, are there any scripture passages that can be used to support membership?