The Quran

وَلَقَد أَرسَلنا موسىٰ بِآياتِنا أَن أَخرِج قَومَكَ مِنَ الظُّلُماتِ إِلَى النّورِ وَذَكِّرهُم بِأَيّامِ اللَّهِ ۚ إِنَّ في ذٰلِكَ لَآياتٍ لِكُلِّ صَبّارٍ شَكورٍ

Muhammad Asad

And [thus], indeed, have We sent forth Moses with Our messages [and this Our command]: "Lead thy people out of the depths of darkness into the light, and remind them of the Days of God!"¹ Verily, in this [reminder] there are messages indeed for all who are wholly patient in adversity and deeply grateful [to God].

In ancient Arabian tradition, the terms "day" or "days" were often used to describe momentous historical events (e.g., ayyam al-'arab as a metonym for the inter-tribal wars of pre-Islamic Arabia). However, in view of the frequent Qur'anic application of the word "day" to eschatological concepts - e.g., the "Last Day", the "Day of Resurrection", the "Day of Reckoning", and so forth - and, particularly, in view of 45:14, where the expression "the Days of God" unmistakably points to His judgment at the end of time - it is only logical to assume that in the present context this expression bears the same significance: namely, God's final judgment of man on the Day of Resurrection. The use of the plural form ("the Days of God") is perhaps meant to bring out the idea that the "Day" of which the Qur'an so often speaks has nothing to do with human time-definitions but, rather, alludes to an ultimate reality in which the concept of "time" has neither place nor meaning.