Jesus prepared His disciples for everything, including war. They saw Him casting out demons. In ffaact, He sent them forth doing the same. But before He sent them out, He charged them to become wise "as serpents" yet innocent and harmless "as doves" (Matt. 10:16). This fusion of divine wisdom and Christ-like innocence is the taproot of all spiritual victory. Indeed, we can defeat the enemy, but wisdom must precede warfare and virtue must come before victory. We must learn the ways of God, which means we must think with wisdom. And we must be pure of heart, that we may see God and gain discernment.
Almighty God, give me Your wisdom in all situations as You write on my heart what is true, honorable, right, pure, lovely, excellent, and worthy of praise that I might dwell on these things constantly as I contend by Your grace against evil and offer oppression no peace. Amen.