And the earth will shine with the light of its Lord, and the record [of deeds] will be placed, and the prophets and the witnesses will be brought, and it will be judged between them in truth, and they will not be wronged.
(And the Trumpet will be blown and all who are in the heavens and all who are on the earth will swoon away, except him whom Allah wills.) This will be the second trumpet-blast, which will cause people to die. By this trumpet-blast, everyone who is alive in the heavens and on earth will be caused to die, except for him whom Allah wills. Then the souls of the remaining creatures will be taken, until the last one to die will be the Angel of Death, and there will be left only the Ever Living, Eternal One, Who was there in the beginning and will be at the end, forever. He will say three times,
In verse 69, it was said: وَجِيءَ بِالنَّبِيِّينَ وَالشُّهَدَاءِ (and the prophets and the witnesses will be brought,) It means that, at the time of reckoning on the plains of Resurrection, present there will be all prophets as well as all other witnesses. The prophets themselves will also be among the witnesses as said in the Qur'an: جِئْنَا مِن كُلِّ أُمَّةٍ بِشَهِيدٍ (We shall bring a witness from every community - An-Nisa', 4:41). And angels too will be among the witnesses, as in the Qur'an: مَّعَهَا سَائِقٌ وَشَهِيدٌ (with each someone [ meaning an angel ] to drive and someone [ meaning an angel ] to bear witness - Qaf, 50:21) where the identity of the driver and the witness has been clearly established as being the angels (Tafsir Ad-Durr-ul-Manthur). And among the witnesses, there will be the followers of the prophet of Islam as in the Qur'an: لِّتَكُونُوا شُهَدَاءَ عَلَى النَّاسِ (and [ so that ] you become witnesses to [ other ] people - Al-Hajj, 22:78). And, for that matter, even one's own body limbs will appear as witnesses as said in the Qur'an تُكَلِّمُنَا أَيْدِيهِمْ وَتَشْهَدُ أَرْجُلُهُم (their hands will speak to Us and their feet will bear witness - Sin, 36:65).
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 66–69
The existence of the Universe is proof of the existence of its Creator. Similarly, the conduct of the affairs of the universe in a meaningful and systematic manner proves that, at all times, a Supreme Caretaker is watching over it. If one gives serious consideration to these things, one will find in the universe the sign of its Creator and also the sign of its Organizer and Designer. Under these circumstances, those who worship beings other than God are indulging in an action which has absolutely no value in the present universe, because as the Creator and Organizer is one and the same, worshipping Him alone will be of avail to man. Worshipping anybody other than that Being amounts to calling upon a totally non-existent entity.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.