Aal-i-Imraan • BN-TAFSEER-IBN-E-KASEER
﴿ وَإِذْ أَخَذَ ٱللَّهُ مِيثَٰقَ ٱلَّذِينَ أُوتُوا۟ ٱلْكِتَٰبَ لَتُبَيِّنُنَّهُۥ لِلنَّاسِ وَلَا تَكْتُمُونَهُۥ فَنَبَذُوهُ وَرَآءَ ظُهُورِهِمْ وَٱشْتَرَوْا۟ بِهِۦ ثَمَنًۭا قَلِيلًۭا ۖ فَبِئْسَ مَا يَشْتَرُونَ ﴾
“AND LO, God accepted a solemn pledge from those who were granted earlier revelation [when He bade them]: "Make it known unto mankind, and do not conceal it!" But they cast this [pledge] behind their backs, and bartered it away for a trifling gain: and how evil was their bargain!”
Please check ayah 3:189 for complete tafsir.