Do we come to fight flesh and blood?

Greetings sons and daughtas. You may have heard about the incidents in various countries in which men who were a part of the Rastafarian Movement murdered and burned Catholic priests. On one particular incident one of the men said he saw the devil in the priests eyez. Was there actions justified? I mean the Catholic Church has been murderers for many many years now. In the bible when certain "Righteous" men put there heart and faith into the Lord, did they not tear down the High Places burn the idols, and murder the priests who sacrificed to these idols. And thus were found in favor of the Lord. Now I personally do not come to fight no flesh and blood but fight with Word, Sound, and Power because the noise of words will always be more powerful than a gun or knife. Words last forever. The word that is spoken can never be unspoken. Plus I believe wicked men will get their due reward. But it is written mankind was given dominion over this world and it is up to us to make our decisions. It is Free will, one of the greatest gifts given unto us. So where these men who murdered these priests, righteous rastafari bredrin, or were they just another wolf in sheeps clothing? Reason with me. Big up Grace.