And of His signs is that the heaven and earth stand [i.e., remain] by His command. Then when He calls you with a [single] call from the earth, immediately you will come forth.
(And among His signs) which speak of His greatness,
يُرِيكُمُ الْبَرْقَ خَوْفاً وَطَمَعاً
(He shows you the lightning, for fear and for hope,) Sometimes you fear the heavy rain and destructive thunderbolts that follow it, and sometimes you feel hope, when you see a flash of lightning, that much-needed rain will come. Allah says:
(and He sends down water from the sky, and therewith revives the earth after its death.) After it was barren, with nothing growing there, then the water comes to it and
Existence of the sky and earth is by the command of Allah. When He will command the breakup of this system, this strong arrangement, which is working since thousands of years perfectly without a slight depreciation, will end up in no time. Then by the command of Allah all the dead will assemble in the plain for reckoning.
The sixth sign of divine omnipotence is in fact the sum and substance of the previous five signs, and they were in fact revealed to explain and elaborate this verse. The subject of this verse continues in the next few verses.
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 24–26
The Universe in all the elements of its existence is the sign of God. Its coming into existence from nothingness and the enormous variety found in it indicates His vast powers. The utmost meaningfulness in all things reflects His quality of mercy. The existence of destructive things like lightning acquaints us with how God takes punitive actions. The revival of greenery on earth after its being dry and barren demonstrates re-creation and resurrection. All these are the signs of God. But these signs are only for those who lend their ears to the silent call of the Universe—for those who put their wisdom and their knowledge to the correct use.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.