The mission of the Good Neighbor Alliance is to provide and assist displaced persons/families in need with safe, temporary shelter and access to supportive services to work toward helping them achieve economic and social self-sufficiency. Established in 1998 by Pastor J. David Barkley and members of Sierra Vista United Methodist Church to address a critical gap in the safety net for homeless men, women, and families with children in Sierra Vista and surrounding communities.

Incorporated as a 501c3 non-profit organization, GNA opened Samaritan Station, a nighttime shelter, in 2003. The organization expanded its services in 2022 by adding a Day Program, allowing guests to remain at the shelter during the day. Since December 2005, GNA has also operated a commercial kitchen, providing meals to shelter guests and unsheltered community members, having served over 15,000 meals with the help of community volunteers. The mission of the Good Neighbor Alliance is to provide safe, temporary shelter and access to supportive services, assisting displaced persons and families in need to achieve economic and social self-sufficiency.