﴿ ۞ لَيْسُوا۟ سَوَآءًۭ ۗ مِّنْ أَهْلِ ٱلْكِتَٰبِ أُمَّةٌۭ قَآئِمَةٌۭ يَتْلُونَ ءَايَٰتِ ٱللَّهِ ءَانَآءَ ٱلَّيْلِ وَهُمْ يَسْجُدُونَ ﴾

“[But] they are not all alike: among the followers of earlier revelation there are upright people, who recite God's messages throughout the night, and prostrate themselves [before Him].”

(They are not all alike) i.e. those who believed from among the people of the Book are not like those among them who have not. (Of the People of the Scripture there is a staunch community) He says: there are among them a group of upright people who are guided by Allah's divine Oneness: 'Abdullah Ibn Salam and his followers (who recite the revelations of Allah) the Qur'an (in the night season) in the hours of the night in their prayer, (falling prostrate (before Him)) praying to Allah.