Surah 32. As-Sajdah, Ayah 24

This interpolation reflects Zamakhshari's commentary on the above passage, to the effect that the Qur'an is destined to provide guidance and light so long as the community's religious leaders are patient in adversity and steadfast in their faith: an interpretation which implies that the Qur'an will cease to be of benefit to people who have lost their moral virtues and their faith.

I.e., in accordance with the divine ordinances enunciated in and for their time in the Torah: an allusion to the decline of faith, frequently mentioned in the Qur'an, among the children of Israel of later times, and the tendency among many of their leaders and learned men to corrupt the text of the Torah and, thus, to "overlay the truth with falsehood" (see, e.g., 2:42 , {75}, {79}, and the corresponding notes).

 i.e., prophets.

The series of Judges, Prophets, and Kings in Israel continued to give good guidance, in accordance with Allah's Law, as long as the people continued in Faith and Constancy (persevering patience). When that condition ceased, Allah's grace was withdrawn, and the people broke up into wrangling sects and practically suffered national annihilation.