The brothers Simeon and Levi: vessels of iniquity waging war.
Simeon and Levi are brethren; Instruments of cruelty are in their habitations.
Simeon and Levi are brothers [equally headstrong, deceitful, vindictive, and cruel]; their swords are weapons of violence. [Gen. 34:25-29.]
Simeon and Levi are brethren; Weapons of violence are their swords.
Simeon and Levi are brothers, weapons of violence their stock in trade.