See, I have appointed you today over nations and kingdoms

The Bible teaches us about the weapons of a Christian's spiritual warfare. These weapons are not carnal, meaning they are not physical or worldly, but instead are mighty through God. They are not dependent on human abilities, such as talent, learning, or wealth, but their strength is derived from God alone.

For the weapons of our warfare are not carnal, but mighty through God to the pulling down of strong holds; casting down imaginations, and every high thing that exalteth itself against the knowledge of God, and bringing into captivity every thought to the obedience of Christ; (2 Cor 10:4-5)

The purpose of these weapons is to pull down strong holds, cast down imaginations, and bring every thought into captivity to the obedience of Christ. These weapons are employed in the battle against anything that exalts itself against the knowledge of God. As the Lord tells Jeremiah,

See, I have appointed you today over nations and kingdoms to uproot and tear down, to destroy and overthrow, to build and plant." (Jer 1:10)

• For the weapons of our warfare - The means by which we hope to achieve our victory. 
• Are not carnal - Not those of the flesh. Not such as the people of the world use. We do not depend on eloquence, or talent, or learning, or wealth, or beauty, or any of the external aids on which the people of this world rely. They are not such as derive advantage from any power inherent in themselves. Their strength is derived from God alone.
• But mighty through God - They are rendered mighty or powerful by the agency of God. They depend on him for their efficacy and power.

Conquerors and earthly warriors go into battle depending on the might of their own arm, and on the wisdom and skill which plans the battle. The Christian goes on his warfare, feeling that however well adapted the truths which he holds are to accomplish great purposes, and however wisely his plans are formed, yet that the efficacy of all depends on the agency of God. We have no hope of victory but in God. 

By the word given us by God, we now understand the power to fight our battles. Our battles are fought diffrently, we declare things in the name of Jesus and they come to pass. We start businesses and they succeed.When its time to shine, even the Kings come to our rising. We do trust our abiity, money, resources available but we rely on the word of God. Our fear is ended because the Lord has given us this word and to rely on Him for our never ending victories.