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.

Trust God with your words

“Resolve and settle in your minds not to meditate and prepare beforehand how you are to make your defense and how you will answer.

For I [Myself] will give you a mouth and such utterance and wisdom that all of your foes combined will be unable to stand against or refute.”

Luke 21:14-15 AMP

Trust God with your words and rely not on your own knowledge or understanding, because, in yourself, your words will drown you; in God, your words will glorify you.