 Scripture is the Word of God. And as such, it's one of the essential weapons in your spiritual battle. Listen carefully to the scriptural readings in Mass and meditate on them deeply. Read Scripture on your own, daily if possible, and ponder how we can apply it to your life. Memorize scriptural texts that we can use against temptation. If the devil tempts us to doubt God's faithfulness, for example, we can reply with St. Paul, applying his words to ourselves, God is faithful, by whom I was called into the fellowship of his Son. Discover more Scripture passages to help you fight against Satan in my introduction to spiritual warfare.