Tafsir of Al-Haqqah 69:38

The Qur'an is the Speech of Allah Allah swears by His creation, in which some of His signs can be seen in His creatures. These also indicate the perfection of His Names and Attributes. He then swears by the hidden things that they cannot see. This is an oath swearing that the Qur'an is His Speech, His inspiration and His revelation to His servant and Messenger, whom He chose to convey His Message, and the Messenger carried out this trust faithfully. So Allah says,

فﻼ أقسم بما تبصرون

وما ﻻ تبصرون