We can cherry pick scripture easily - there's one about having enough swords, too, and Jesus approved it.
It's the interpretation that men differ over.
Churches in my area were quietly allowing concealed carry ten years ago, and at the time it wasn't discussed. It came out later after state law changed and the point was to provide protection to members against those who harbored hatred against Christianity.
Pastors in the Midwest added they carry, in church, during the service.
The problem is that those of African descent have had disarmament drummed into their culture steadily as a tradeoff for support for equity issues nationwide. Guns are seen as evil, or at least, a token of a non-Christian lifestyle, i.e. gansta. There's no cultural experience for the middle class to share in gun ownership - and it's problematic to be seen with them.
So, while "protestant" ministers of many Midwest denominations don't see concealed carry as a major issue, and participate themselves, ministers of churches like those of the AME won't, and don't. What has been created is a known victim zone - again - and it's exactly why responsible leaders in their community have called on members to fix it. And it doing so, they were tossed from their offices and jobs, one noted leader just a few months back.
The African American community is as deeply divided on guns as any other, with extreme political results. There's very little tolerance on one side, and very few good reasons to be vocal on the other - the liberal white community that supports their causes will stop and frisk on the street. Rock and a hard place.