And just as We encouraged the people of faith in the righteous of the deeds, and We warned the people of disbelief from staying upon their acts of disobedience and their disbelief in Our verses, We sent down this Qur'an in the Arabic tongue; so that they understand it, and We detailed therein types of the threat; in the hope that they fear their Lord, or this Qur'an originates for them a reminder, so they take heed, and take lesson.