â€œDo they not look at the camels, how they are created? And at the heaven, how it is raised? And at the mountains, how they are rooted? And at the earth, how it is outspread?â€ [88:17-21]
Do they not look at the camels, how they are created. Indeed, it is an amazing creation, and the way it has been fashioned is strange. For it is extremely powerful and strong, yet gentle, carrying heavy loads. It allows itself to be guided by a weak rider. It is eaten, benefit is derived from its hair, and its milk is drunk. They are reminded of this because the most common domestic animal of the Arabs was the camel.
Then Allah says, And at the mountains, how they are rooted. Meaning, how they have been erected. For indeed they are firmly affixed so that the earth does not sway with its dwellers. And He made them with the benefits and minerals they contain.
And at the earth, how it is outspread. Meaning, how it has been spread out, extended and made smooth.
Thus, He directs the bedouin (the people of the desert) to consider what he himself witnesses. His camel that he rides upon, the sky that is above his head, the mountain that faces him, and the earth that is under him; all of this is proof of the power of the Creator and Maker of these things. These things should lead him to see that He is the Lord, the Most Great, the Creator, the Owner, and the Controller of everything. Therefore, He is the God other than Whom none deserves to be worshipped.
Reference: Tafseer Ibn Kathir