"Lord, come down in a mighty way and strengthen us so that we can bring down these high gas prices," Twyman said to a chorus of "amens".

"Prayer is the answer to every problem in life... We call on God to intervene in the lives of the selfish, greedy people who are keeping these prices high," Twyman said on the gas station forecourt in a neighborhood of Washington that, like many of its residents, has seen better days.

"Lord, the prices at this pump have gone up since last week. We know that you are able, that you have all the power in the world," he prayed, before former beauty queen Rashida Jolley led the group in a modified version of the spiritual, "We Shall Overcome".

"We'll have lower gas prices, we'll have lower gas prices..." they sang.