The phrase "member churches" refers to a group of churches that are part of an organization or alliance. They come together to support each other and work towards common goals. Full definition
People with mental health challenges have a unique role and calling as members the church. (relevantmagazine.com)
This declaration, which was approved in August by the Evangelical Lutheran Church in America and endorsed in July by delegates to the Lutheran World Federation (it will be studied by other member churches of the LWF as well as by the Vatican), calls for seeing the old condemnations and anathemas «in a new light.» (religion-online.org)
He goes on to ask why «interaction and relations with LWF member churches in North America» is necessary before the NALC's membership in the LWF can be considered. (firstthings.com)