You are reading a tafsir for the group of verses 19:69 to 19:70
ثم لننزعن من كل شيعة ايهم اشد على الرحمان عتيا ٦٩ ثم لنحن اعلم بالذين هم اولى بها صليا ٧٠
ثُمَّ لَنَنزِعَنَّ مِن كُلِّ شِيعَةٍ أَيُّهُمْ أَشَدُّ عَلَى ٱلرَّحْمَـٰنِ عِتِيًّۭا ٦٩ ثُمَّ لَنَحْنُ أَعْلَمُ بِٱلَّذِينَ هُمْ أَوْلَىٰ بِهَا صِلِيًّۭا ٧٠
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3

ثُمَّ لَنَنزِعَنَّ مِن كُلِّ شِيعَةٍ

"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.