An Amen (noun, singular) is a group composed entirely of men. Amens are becoming less popular in this age of greater equality of the sexes.
When they were more popular, amens were formed for any number of reasons. They could be public service organizations or, more frequently, they were excuses to get together, watch sporting events and guzzle beer.
Even in the case where the amen was formed as a public service organization, if there is a sporting event on and copious beer on hand, it wasn’t wise to expect any help from above, below or anywhere, for that matter, when people cried out for help from an amen.