Romans 16:17
"Now I beseech you, brethren, mark them which cause divisions and offences contrary to the doctrine which ye have learned; and avoid them."
Years ago my wife and I drove to a meeting in the Midwest. We arrived on Saturday afternoon and were supposed to meet the pastor at the church. When we arrived, across the street from the church were some youth partying in their front yard. My wife and I had not been there long when we heard a gun shot ring throughout the neighborhood. I happened to see at the sound of the shot a young man fall to the ground. I quickly ran over after looking to be sure the shooter was not around to find the young man had been killed.