Behavior Checklist
"Do all things without murmurings and disputings: That ye may be blameless and harmless, the sons of God, without rebuke, in the midst of a crooked and perverse nation, among whom ye shine as lights in the world." (Philippians 2:14-15)
The Greek word translated "murmur" is goggusmos, and it is almost an onomatopoeia (sounds like what it actually is)--a secret debate, muttering to oneself. The "dispute" (Greekdialogismos) suggests a logical debate with oneself.
That condition "works out" in this life as a faultless reputation that is harmless. Paul uses the term this way: "I would have you wise unto that which is good, and simple concerning evil" (Romans 16:19).