“Verily, in the creation of heavens and the earth, and the alternation of night and day, and the ships which sail through the sea with that which is of use to mankind, and the water (rain) which Allah sends down from the sky and makes the earth alive therewith after its death, and the moving (living) creatures of all kinds that He has scattered therein, and in the veering of winds and clouds which are held between the sky and and the earth, are indeed Ayat (proofs, evidences, signs) for people of understanding.” (2:164)
Verily, in the creation of the heavens and the earth…,
Therefore, the sky, with its height, intricate design, vastness, the heavenly objects in orbit, and this earth, with its density, its lowlands, mountains, seas, deserts, valleys, and other structures, and beneficial things that it has.
… and in the alternation of night and day,
This (the night) comes and then goes followed by the other (the day) which does not delay even an instant, just as Allah said: “It is not for the sun to overtake the moon, nor does the night outstrip the day. They all float, each in an orbit.” (36:40) Sometimes the day grows shorter and sometimes vice versa; one takes from the length of the other. Similarly Allah said: “Allah merges the night into the day, and He merges the day into the night.” (57:6)
…and the ships which sail through the sea with that which is of use to mankind,
Shaping the sea in this manner, so that it is able to carry ships from one shore to another, so people benefit from what the other region has, and export what the they have to them and vice versa.
…and the water which Allah sends down from the sky and makes the earth alive therewith after its death,
which is similar to Allah’s statement: “And a sign for them is the dead land. We give it life, and We bring forth from its grains, so that they eat thereof.” (36:33)
…and the moving (living) creatures of all kinds that He has scattered therein,
Meaning; in various shapes, colors, uses and sizes, whether small or large. Allah knows all that, sustains it, and nothing is concealed from Him. Similarly Allah said: “And no moving (living) creature is there on earth but its provision is due from Allah. And He knows its dwelling place and its deposits (in the uterus or grave). All is in a Clear Book (Al-Lawh Al-Mahfuz- the Book of Decrees with Allah). (11:6)
…and in the veering of winds,
Sometimes, the wind brings mercy and sometimes torment. Sometimes, it brings the good news of the clouds that follow it, sometimes it leads to clouds, herding them, scattering them or directing them. Sometimes, the wind comes from the north, and sometimes from the south, sometimes from the east…
…and clouds which are held between the sky and the earth.
The clouds run between the sky and the earth to wherever Allah wills of lands and areas.
…are indeed ayat for people of understanding.
Meaning all these things are clear signs that testify to Allah’s Oneness.
Reference: Tafsir Ibn Kasir