Judges 1:3 And Judah said to Simeon his brother, “Come up with me into the territory allotted to me, that we may fight against the Canaanites. And I likewise will go with you into the territory allotted to you.” So Simeon went with him.
4 Then Judah went up and the LORD gave the Canaanites and the Perizzites into their hand
Ephesians 6:12 For we do not wrestle against flesh and blood, but against the rulers, against the authorities, against the cosmic powers over this present darkness, against the spiritual forces of evil in the heavenly places.
If we are to overcome the evils of this world with the love of Christ, the bride of Christ must come together as one voice and one body.