That old devil wants you dead--
Wants your heart and wants your head,
Wants to break whatever's whole
Till he rots your entire soul.
In the hot temptation hour,
You can't win by your own power.
Here's the deal, the truth I've heard:
He's defeated by God's word.
Use God's word, your shining sword.
You'll stay pure to serve your Lord.
In all circumstances take up the shield of faith, with which you can extinguish all the flaming darts of the evil one; and take the helmet of salvation, and the sword of the Spirit, which is the word of God... (Ephesians 6:16-17 ESV)
...Resist the devil, and he will flee from you. (James 4:7 ESV)