وَإِن كُلٌّ لَّمَّا جَمِيعٌ لَّدَيْنَا مُحْضَرُونَ
(And surely, all -- everyone of them will be brought before Us.) means, all of the past nations and those that are yet to come, will be gathered and brought to account before Allah, may He be glorified and exalted, on the Day of Judgement, and they will be requitted according to their good and evil deeds. This is like the Ayah: