Those to whom We gave the Scripture know him as they know their own sons. But in-Quran Verses

2-Surah Al-Baqarah ( The Cow ) 146

Those to whom We gave the Scripture know him as they know their own sons. But indeed, a party of them conceal the truth while they know [it].

﴿146﴾الَّذِينَ آتَيْنَاهُمُ الْكِتَابَ يَعْرِفُونَهُ كَمَا يَعْرِفُونَ أَبْنَاءَهُمْ ۖ وَإِنَّ فَرِيقًا مِّنْهُمْ لَيَكْتُمُونَ الْحَقَّ وَهُمْ يَعْلَمُونَ

Quran's Tafhim ( explanation)

*148). 'To recognize something as well as one recognizes one's sons' is an Arabic idiom. It is used with regard to things which one knows without the least shadow of a doubt. The Jewish and Christian scholars were well aware that the Ka'bah had been constructed by Abraham and that Jerusalem had been built by Solomon some thirteen hundred years after that, and that in his time it was made the qiblah. This is an unquestionable historical fact and they knew it to be so.