Isaiah 54:17 – No weapon formed against you shall prosper, and every tongue which rises against you in judgment you shall condemn.  This is the heritage of the servants of the Lord, and their righteousness is from Me, says the Lord.

2 Corinthians 10:3-5 – For though we walk in the flesh, we do not war according to the flesh.  For the weapons of our warfare are not carnal but mighty in God for pulling down strongholds, casting down imaginations and every high thing that exalts itself against the knowledge of God, bringing every thought into captivity to the obedience of Christ.

Luke 10:19 – Behold, I give you the authority to trample on serpents and scorpions, and over all the power of the enemy, and nothing shall by any means hurt you.