يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓا۟ إِن تُطِيعُوا۟ فَرِيقًا مِّنَ ٱلَّذِينَ أُوتُوا۟ ٱلْكِتَـٰبَ يَرُدُّوكُم بَعْدَ إِيمَـٰنِكُمْ كَـٰفِرِينَ

EnglishSaheeh International: O you who have believed, if you obey a party of those who were given the Scripture, they would turn you back, after your belief, [to being] unbelievers.
TamilJan Trust Foundation: நம்பிக்கை கொண்டோரே! வேதத்தையுடையோரில் ஒரு பிரிவாரை நீங்கள் பின்பற்றினால், அவர்கள் உங்களை, நீங்கள் ஈமான் கொண்டபின், காஃபிர்களாக திருப்பி விடுவார்கள்.
SinhalaRuwwad Center: අහෝ විශ්වාස කළවුනි! ධර්ම ග්‍රන්ථය දෙනු ලැබූ අය අතරින් පිරිසකට නුඹලා අවනත වන්නෙහු නම් නුඹලාගේ විශ්වාසයෙන් පසුව නුඹලාව ඔවුන් නැවත ප්‍රතික්ෂේපකයින් බවට හරවනු ඇත.
UrduMaulana Muhammad Junagarhi: اے ایمان والو! اگر تم اہل کتاب کی کسی جماعت کی باتیں مانو گے تو وه تمہیں تمہارے ایمان ﻻنے کے بعد مرتد کافر بنا دیں گے.
JapaneseRyoichi Mita: 信仰する者よ，あなたがたがもし啓典の民であるからといって一分派に従うならば，かれらは信仰に入ったあなたがたを不信心者に引き戻すであろう。
ChineseMa Jian: 信道的人们啊！如果你们顺从曾受天经的一部分人，那末，他们将使你们在信道之后变成不信道的人。

Tafsir of 3:100

Warning Muslims Against Imitating People of the Scriptures Allah warns His believing servants against obeying the People of the Book, who envy the believers for the favor that Allah gave them by sending His Messenger . Similarly, Allah said, وَدَّ كَثِيرٌ مِّنْ أَهْلِ الْكِتَبِ لَوْ يَرُدُّونَكُم مِن بَعْدِ إِيمَنِكُمْ كُفَّارًا حَسَدًا مِّنْ عِنْدِ أَنْفُسِهِمْ (Many of the People of the Scripture (Jews and Christians) wish that they could turn you away as disbelievers after you have believed, out of their own envy) 2:109. In this Ayah 3:100, Allah said, إِن تُطِيعُواْ فَرِيقاً مِّنَ الَّذِينَ أُوتُواْ الْكِتَبَ يَرُدُّوكُم بَعْدَ إِيمَنِكُمْ كَفِرِينَ (If you obey a group of those who were given the Scripture (Jews and Christians), they would (indeed) render you disbelievers after you have believed!), then said, وَكَيْفَ تَكْفُرُونَ وَأَنْتُمْ تُتْلَى عَلَيْكُمْ ءَايَتُ اللَّهِ وَفِيكُمْ رَسُولُهُ (And how would you disbelieve, while unto you are recited the verses of Allah, and among you is His Messenger), meaning, disbelief is far from touching you, since the Ayat of Allah are being sent down on His Messenger day and night, and he recites and conveys them to you.…

Source: Ibn Kathir (Abridged)