Does God Author Sin?

Here are some helpful links from the Desiring God ministry that discuss this issue:

Blog entries:

• Does God author sin?
  
• Does God cause sin?
  
• Does God permit sin?
  
• The author-story model
  
• Does God Cause Sin or Just Allow It?
  
• Why do we resist God's sovereignty?
  

Sermons by John Piper

• (a) "Spectacular Sins"
  
• (b) "The Fall of Satan"
  
• (c) "The Fatal Disobedience of Adam and the Triumphant Obedience of Christ"
  
• More messages on Romans 5
  
• Here is the whole series titled "Spectacular Sins and Their Global Purpose in the Glory of Christ"