Lyric discussion by HRslammR 

Cover art for God Gave Me A Gun lyrics by Roger Clyne & The Peacemakers

if this doesn't scream anti-war i don't know what does. he's talking about how humans tend to think that some how we're justified in killing beyond just what we need to survive. it's the "might is right" theory, that the person in power some how feels justified to use justified because "god" gave it to them.