The Miracle of the Qur'an: If it were from human source, it would contain contradiction.
The Qur'an is questioned rhetorically: if it were from a source other than God, it would contain contradiction and inconsistency. **Use consistency as proof.** The moral, historical, and scientific consistency of the Qur'an across its entire revelation is proof of its divine origin. Use this intellectual certainty to fortify your faith.