The Cow
ٱلَّذِينَ ءَاتَيْنَـٰهُمُ ٱلْكِتَـٰبَ يَتْلُونَهُۥ حَقَّ تِلَاوَتِهِۦٓ أُو۟لَـٰٓئِكَ يُؤْمِنُونَ بِهِۦ ۗ وَمَن يَكْفُرْ بِهِۦ فَأُو۟لَـٰٓئِكَ هُمُ ٱلْخَـٰسِرُونَ
Those to whom We have given the Book recite it with its true recital. They [are the ones who] believe in it. And whoever disbelieves in it - it is they who are the losers.
Nearby ayahs help place verse 2:121 in sequence and meaning.
إِنَّآ أَرْسَلْنَـٰكَ بِٱلْحَقِّ بَشِيرًا وَنَذِيرًا ۖ وَلَا تُسْـَٔلُ عَنْ أَصْحَـٰبِ ٱلْجَحِيمِ
Indeed, We have sent you, [O Muhammad], with the truth as a bringer of good tidings and a warner, and you will not be asked about the companions of Hellfire.
وَلَن تَرْضَىٰ عَنكَ ٱلْيَهُودُ وَلَا ٱلنَّصَـٰرَىٰ حَتَّىٰ تَتَّبِعَ مِلَّتَهُمْ ۗ قُلْ إِنَّ هُدَى ٱللَّهِ هُوَ ٱلْهُدَىٰ ۗ وَلَئِنِ ٱتَّبَعْتَ أَهْوَآءَهُم بَعْدَ ٱلَّذِى جَآءَكَ مِنَ ٱلْعِلْمِ ۙ مَا لَكَ مِنَ ٱللَّهِ مِن وَلِىٍّ وَلَا نَصِيرٍ
And never will the Jews or the Christians approve of you until you follow their religion. Say, "Indeed, the guidance of Allah is the [only] guidance." If you were to follow their desires after what has come to you of knowledge, you would have against Allah no protector or helper.
يَـٰبَنِىٓ إِسْرَٰٓءِيلَ ٱذْكُرُوا۟ نِعْمَتِىَ ٱلَّتِىٓ أَنْعَمْتُ عَلَيْكُمْ وَأَنِّى فَضَّلْتُكُمْ عَلَى ٱلْعَـٰلَمِينَ
O Children of Israel, remember My favor which I have bestowed upon you and that I preferred you over the worlds.
وَٱتَّقُوا۟ يَوْمًا لَّا تَجْزِى نَفْسٌ عَن نَّفْسٍ شَيْـًٔا وَلَا يُقْبَلُ مِنْهَا عَدْلٌ وَلَا تَنفَعُهَا شَفَـٰعَةٌ وَلَا هُمْ يُنصَرُونَ
And fear a Day when no soul will suffice for another soul at all, and no compensation will be accepted from it, nor will any intercession benefit it, nor will they be aided.