Man's Amazement about Life after Death and the Refutation against this Amazement
Allah, the Exalted, informs that mankind is amazed that he could be returned to life after death and he thinks that this is something farfetched. As Allah says,
"Then We will certainly draw out from every group." - 19:69.
The word is applied to a particular person or the followers of a particular faith, and it also means a sect. The meaning of the verse is that the most rebellious from amongst the different sects of the infidels will be picked out. Some commentators say that the sinners will be committed to Hell in the order of the intensity of their sins, i.e. those sinners will be driven in first whose sins are most intense and those with less intense sins, will follow them, and so on.
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 68–71
The Arabs, who were the primary addressees of the Quran, accepted the theory of life after death. All the words in the Quran relating to the life hereafter were already present in their vocabulary. But their acceptance was purely formal, as such it had no impact on their lives. In practice, they led their lives in a way that implied, ‘The life of this world is the only life. Who is going to resurrect us after our death and who is going to call us to account?’ This indifference or denial, persists because man does not give serious consideration to this matter. If he did so, he would find that his initial, first birth is in itself an argument in support of his re-birth. Here, the word ‘Satan’ stands for leaders who, with the help of deceitful words, mislead the common man. In this sense, they do the same work as Satan does. In the present world, these leaders are highly visible in their positions of greatness, and the people are therefore unable to ignore them. But, in the life hereafter, they will lose this ‘greatness’ and will be pushed into the pit of ignominy along with their followers.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.