We need to affirm the promises of God, to hide them in our hearts. Scripture commands us to use the sword of the spirit, Ephesians 6: 10-18. I found that when I neglected affirming scripture, I handed the enemy the microphone in my mind. Truth cards were my way of reclaiming that space. When Satan starts spewing lies, the best and only effective way of reclaiming the microphone is to hold up a truth card, reminding Satan that he has no claim here.