Lead every thought and purpose captive.

"[Inasmuch as we] refute arguments and theories and reasonings and every proud and lofty thing that sets itself up against the [true] knowledge of God; and we lead every thought and purpose away captive into the obedience of Christ (The Messiah, the Anointed One)." II Corinthians 10:5 AMPC

Every thought you think, every purpose you embark on, should align itself with God's Word.  If they don't, then what you are thinking, and what you are embarking on is not right, not true, and isn't worth your time.  Therefore, dig deep into God's Word and make His thoughts your thoughts, make His purpose your purpose, and know that every time you do you will crush Satan further and further into the ground, disabling his action plan of ever trying to hurt you.