Because Jesus charged us (the body of Christ) to undo the devil’s work, the devil may fight back.  Jesus equipped the church (the body of Christ) with the same tools God equipped Jesus with: God’s Word, the name of Jesus, the Spirit of God, and power (Acts 1:8, 10:38).  Our “faith” that moves God’s power/brings miracles depends on our learning God’s Word and putting God’s Word in our heart (Romans 10:17, John 15:7, John 8:31-32, Joshua 1:8, Proverbs 4:20-22).  The devil counters by distracting us from God’s Word (Mark 4:11-20) and by buffeting us (2 Corinthians 12:7-9).  However, we, the body of Christ, win against the devil’s work, if we continue to put God’s Word in our heart to make our “faith” strong (Romans 10:17, John 15:7, John 8:31-32, Joshua 1:8, Proverbs 4:20-22) and to do “faith” to undo the devil’s work (1 John 3:8, John 14:12, 1 John 4:4, Mark 16:17-18, Mark 11:22-24).  [See the studies “Bible Miracles Explained,” “What Jesus Means by Faith,” “Gospel of Kingdom of God,” “Prayer Authority,” and “Fight the Good Fight of Faith.”]