Why Did You Let the False Teachers Beguile You?

Do you remember our Lord's rebuke of Peter in Matthew 14? "And immediately Jesus stretched out His hand and caught him, and said to him, 'O you of little faith, why did you doubt?'" The implication is there was no reason to doubt. In a similar way, the Apostle Paul astounded by the defection of the Galatians to a false doctrine, could not understand why they left the truth. There was no reason for the Galatians abandoning justification by faith alone.
I. What Happened to you? (verse 1)
II. The Evidence of the Spirit (verse 2-6)