I commit myself to take every thought captive to the obedience of Christ, and choose to think upon that which is true, honourable, right, pure and lovely. I know that the Holy Spirit explicitly says that in later times some will fail away from the faith, paying attention to deceitful spirits and doctrines, or teachings of demons (see 1 Timothy 4:1).
Jesus prays, “I do not ask Thee to take them out of the world, but to keep them from the evil one. They are not of the world, even as I am not of the world. Sanctify them in the truth; Thy word is truth” (John 17:15-17). Paul wrote, “I am afraid, lest as the serpent deceived Eve by his craftiness, your minds should be led astray from the simplicity and purity of devotion to Christ” (2 Corinthians 11:3). There is a battle going on for the minds of all believers; hence the necessity to take every thought captive to the obedience of Christ (see 2 Corinthians 10:5).
When we put on the armor of God, we take up the shield of faith which enables us to extinguish the flaming missiles of the evil one (see Ephesians 6:16). The way we overcome the father of lies (see John 8:44) is by choosing the truth of God’s Word. Jesus said,”’ If you abide in My word, then you are truly disciples of Mine; and you shall know the truth, and the truth shall make you free’” (John 8:31,32). We are not called to dispel the darkness. We are called to turn on the light. We do this by choosing to believe the truth of God’s Word.
Finally, brethren, whatever is true, whatever is honourable, whatever is right, whatever is pure, whatever is lovely, whatever is of good repute, if there is any excellence and if anything worthy of praise, let your mind dwell on these things. The things you have learned and received and heard and seen in me, practice these things; and the God of peace shall be with you (Philippians 4:8,9).
Neil Anderson: Freedom from Addiction Manual