Original sentence: Some Islamic scholars faced questions that they felt were not specifically answered in the Qur'an, especially questions with regard to philosophical conundra like the nature of God, the existence of human free will, or the eternal existence of the Qur'an
Edited sentence: Some Islamic scholars faced questions that they felt were not specifically answered in the Qur'an, especially questions with regard to philosophical conundra like the nature of God, the possibility of human free will, or the eternal existence of the Qur'an