Lyric discussion by Yokinazu 

Cover art for Gun Song lyrics by Lumineers, The

From an interview in 2012. http://thedishmaster.com/2012/03/the-lumineers-interview-self-titled-debut-album.html

Is it true that “Gun Song” is about your relationship with your father?

Wesley: My dad had passed away, and his socks were still in his drawer. I went in there to grab black socks, and I pulled out a gun. It made me think of all the things I didn’t know about him. That was the spark of the song.