Ar-Ra'd 13:37

Wakathalika anzalnahu hukmanAAarabiyyan wala-ini ittabaAAta ahwaahum baAAda majaaka mina alAAilmi ma laka mina Allahi minwaliyyin wala waq

And thus We have revealed it as an Arabic legislation. And if you should follow their inclinations after what has come to you of knowledge, you would not have against Allāh any ally or any protector.

Thus We have sent it down, being a command in Arabic. And if you follow their desires, after the knowledge that has come to you, there shall be neither a friend for you against Allah, nor a savior.