﴿ ٱلَّذِينَ ءَاتَيْنَٰهُمُ ٱلْكِتَٰبَ يَعْرِفُونَهُۥ كَمَا يَعْرِفُونَ أَبْنَآءَهُمْ ۖ وَإِنَّ فَرِيقًۭا مِّنْهُمْ لَيَكْتُمُونَ ٱلْحَقَّ وَهُمْ يَعْلَمُونَ ﴾

“They unto whom We have vouchsafed revelation aforetime know it as they know their own children: but, behold, some of them knowingly suppress the truth -”

Please check ayah 2:147 for complete tafsir.