It's a theological thing

I once debated an Orthodox Presbyterian clergyman whose devotion to firearms was as strong as his faith in Jesus Christ. The reverend’s beliefs were based on the idea that God ordained the man to be the head of the household and it is his duty, not only to his family, but also to God, to protect them in the most effective way. The reverend unabashedly believes God calls him to carry a handgun at all times, and he was clear in stating that Jesus would carry a gun if he were walking our streets today.

Bear in mind he was referring to the same Jesus of Nazareth who instructed his disciples to turn the other cheek, to love our enemies, and who laid down his life even for the man who put a spear in his side.

Notwithstanding, this reverend and other Christians in gun cults are certain God does not want the head of the household using a trigger lock on his gun. His duties to protect the family require that he be ready at a moment’s notice to come to their defense.

This theology is blasphemous, but it is a theology nevertheless.—America and Its Guns: A Theological Expose, pages 81–82