29أَلَم تَرَ أَنَّ اللَّهَ يولِجُ اللَّيلَ فِي النَّهارِ وَيولِجُ النَّهارَ فِي اللَّيلِ وَسَخَّرَ الشَّمسَ وَالقَمَرَ كُلٌّ يَجري إِلىٰ أَجَلٍ مُسَمًّى وَأَنَّ اللَّهَ بِما تَعمَلونَ خَبيرٌN. J. DawoodDo you not see how God causes the night to pass into the day and the day to pass into the night? He has pressed the sun and the moon into His service, each running for an appointed term.