The sura takes its name from the first verse which is understood to refer to Mount Sinai. The five oaths lead to the certainty of punishment for the unjust and rejectors of truth. The fate of the deniers of truth is contrasted to the fate of the God conscious with graphic descriptions of the day of judgement, and the bliss of Janna.
Replies from Divinity to the accusations made against the Prophet being a soothsayer, madman and poet follow with the Prophet told that He is protected by Divinity. He is asked to wait patiently for judgement and to praise and declare the Perfection of Allah at dawn and at the setting of the stars. (Am indication to pray the nafila (extra) prayers before sunset and dawn and the night prayers.