Ephesians 6:10-12 says
10Finally, my brethren, be strong in the Lord, and in the power of his might.
11 Put on the whole armor of God, that ye may be able to stand against the wiles of the devil.
12 For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.
Sometimes a battle is unavoidable. But with godly courage and the right armor you can win every battle.