When the nation’s largest airport, Atlanta International, essentially shut down due to a power outage leaving flights grounded and thousands of travelers stranded and frustrated, an organization that often gets a lot of flak for its Christian beliefs did what it does best: Showed up and fed people.

On Sunday, following the massive power outage that led many travelers without a place to stay but the airport, the city of Atlanta decided to open the Georgia International Convention Center and shuttle people there. Chick-fil-A jumped into action and served people sandwiches that evening, despite the fact that the company is usually closed every Sunday, a decision founder Truett Cathy made due to his Christian faith and desire to give employees time with their families and a day of rest.