Bible Reasons

1. Refusal to surrender an idol to God (Ezekiel 14).
2. Sin in the heart (Psalm 66:18).
3. Unresolved conflict between brethren (Matthew 5:23; James 5:16).
4. Because of unbelief (Matthew 13:58; Mark 5:40; Luke 8:54).
5. Marital unrest (1 Peter 3:7).
6. Asking with wrong motives (James 4:3 NASB).