The purpose here is simply to draw attention to this. Likewise, in Surah Yūnus, Allah Most High says:

“Do people find it astonishing that We have revealed to a man from among them, ‘Warn mankind and give good news to those who believe that they will have a sure standing with their Lord’?”

Then He says:

“Indeed, your Lord is Allah, who created the heavens and the earth in six days, then rose over the Throne, directing all affairs. No one can intercede except after His permission. That is Allah, your Lord, so worship Him. Will you not then take heed?”

In Surah Alif Lām Mīm al-Sajdah, Allah Most High says:

“Alif Lām Mīm.”

“The revelation of the Book, about which there is no doubt, is from the Lord of all worlds.”

“Or do they say, ‘He has fabricated it’? Rather, it is the truth from your Lord, so that you may warn a people to whom no warner came before you, that they may be guided.”

“Allah is the One who created the heavens and the earth and everything between them in six days, then rose over the Throne. You have no protector or intercessor besides Him. Will you not then take heed?”

And He says:

“The revelation of the Book is from Allah, the Almighty, the All-Wise.”

“Indeed, We have sent down the Book to you in truth, so worship Allah, devoting your religion sincerely to Him.”

“Surely, sincere devotion belongs to Allah alone. Those who take protectors besides Him say, ‘We worship them only so that they may bring us nearer to Allah.’”

Another example is His saying:

“A Book whose verses have been perfected and then explained in detail, from One who is All-Wise, All-Aware.”

“Worship none but Allah. Indeed, I am a warner and a bearer of good news to you from Him.”

And His saying:

“If they do not respond to you, then know that it has been sent down with Allah’s knowledge and that there is no deity worthy of worship except Him. Will you then submit?”

And His saying:

“He sends down the angels with revelation by His command upon whomever He wills of His servants: ‘Warn that there is no deity except Me, so fear Me.’”

And His saying:

“And on the Day He calls to them and says, ‘Where are My partners whom you used to claim?’”

Then He says: