(15) “To Allah prostrates whoever is in the heavens and on earth, willingly or unwillingly, as do their shadows in the mornings and evenings.”

That is, everything contained in the heavens and on earth is wholly submissive to its Lord and prostrates to Him “willingly or unwillingly.” Willing prostration is that of those who choose to prostrate and submit, such as the believers. Unwilling prostration is that of one who is too arrogant to worship his Lord, although his very condition and innate nature belie him in this regard.

“As do their shadows in the mornings and evenings”—that is, the shadows of created beings prostrate to Him at the beginning and end of the day. Everything prostrates in a manner suited to its nature, as Allah Most High says: “There is nothing that does not glorify Him with praise, but you do not understand their glorification.”

Since all created beings prostrate to their Lord, willingly or unwillingly, He alone is truly God and truly worthy of worship and praise, while the divinity of all others is false. He therefore states the falsity of such divinity and demonstrates it with His words: