51:8

إِنَّكُمْ لَفِي قَوْلٍ مُّخْتَلِفٍ

Transliteration:

Innakum lafee qawlin mukhtalifin

Word by Word:

Indeed, you (are) surely in a speech differing.

Translations:

Verily, [O men,] you are deeply at variance as to what to believe:

Truly ye are in a doctrine discordant,

Lo! ye, forsooth, are of various opinion (concerning the truth).

Surely you are of warying opinion --

Indeed, you are in differing speech.