118. At the end of the historical account, the same theme, with which the Surah began, is resumed. For reference, see (verses 1-9).

119. That is, this lucid Book whose verses are being recited to you, and this admonition from which the people are turning away, is not the product of the whims of a man. It has not been written and compiled by Muhammad (peace be upon him) himself, but it consists of the revelations of the Lord of this universe.

120. That is, Angel Gabriel, as mentioned in (Surah Al- Baqarah, Ayat 97): Say to them: Whosoever is the enemy to Gabriel, he should understand that he has, by Allah’s command, revealed to your heart the Quran. Here the object of using the title of the trustworthy Spirit for Gabriel implies that the Quran is not being sent down by Allah through some material agency, which is subject to change and vacillation; but through a pure Spirit, having no tinge of materialism, and who is perfectly trustworthy. This Spirit conveys the messages of Allah precisely in the same form and with the same content as they are entrusted to him. It is not possible for him to tamper with the messages, or to make his own additions to them in any way.