2:146
ٱلَّذِينَ ءَاتَيْنَٰهُمُ ٱلْكِتَٰبَ يَعْرِفُونَهُۥ كَمَا يَعْرِفُونَ أَبْنَآءَهُمْ ۖ وَإِنَّ فَرِيقًۭا مِّنْهُمْ لَيَكْتُمُونَ ٱلْحَقَّ وَهُمْ يَعْلَمُونَ
Allazeena aatainaahumul kitaaba ya'rifoonahoo kamaa ya'rifoona abnaaa'ahum wa inna fareeqam minhum layaktumoonal haqqa wa hum ya'lamoon
The people of the Book know this as they know their own sons; but some of them conceal the truth which they themselves know.