Overall meaning : It is He who has made the sun to shine by day and the moon for a light by night and has ordained its phases so that you may know the number of years and calculate the days and months. Allah has not created all this without a purpose. He sets out in detail the signs and proofs of the truth for those endowed with knowledge.
In the alternation of night and day, and in all that God has created in the heavens and the earth, there are clear signs pointing to the Creator, Exalted be He, for the God-fearing
Surely in the alternation of the day and the night, and in all that Allah has created in the heavens and the earth, there are truly clear signs pointing to the Creator, Exalted be He, for those who shun His wrath and punishment by doing what He commands and avoiding what He forbids.