Murder is an act of hatred originating in the heart. Man, however, is not the inventor of murder. It is, in fact, the will and work of Satan.
In Bible times, the greatest form of defence for a city was to remain strong and surrounded by high walls. If a people group or nation had high walls and a strong city, they were extremely difficult to conquer. During these times, the barriers were imperative for a strong national defense. The Lord considered this scenario as an appropriate picture to demonstrate the state of an offended brother, resulting from contention. The Lord likens this contention to the bars on a castle. Even if the enemy were capable of getting into the strong city, other obstacles existed making it impossible to break through to its core. These included the bars erected to avoid someone from entering the castle. In like manner, contention makes it almost impossible to break through to the heart of an offended brother.
