O People of the Book! Why do you disbelieve in God’s Revelations (the clear proofs of truth), when you yourselves bear witness (to their truth in your own Books)
O people of the Book, why do you disbelieve in the verses of Allah (revealed in the former Scriptures to foretell about the advent of the Holy Prophet ?) while you are yourselves witnesses (to those verses)
O People of the Book! Why do you deny the truth of God's Messages to which you yourselves bear witness? (Wasn't the Scripture revealed to you? And it foretells the advent of this Prophet)
O people of the Scripture! (Jews and Christians): "Why do you disbelieve in the Ayat of Allah, (the Verses about Prophet Muhammad SAW present in the Taurat (Torah) and the Injeel (Gospel)) while you (yourselves) bear witness (to their truth)."
O you to whom the knowledge of reality has come, even though you bear witness to the reality, why do you deny the existence of Allah in His signs (the manifestations of His Names)?
Sayyed Abbas Sadr-Ameli
O' People of the Book! Why do you disbelieve in the Signs of Allah while you bear witness (to their truth) ?
Al-muntakhab fi tafsir al-Qur'an al-Karim
O you Ahl al-Kitab, why do you always deny Allah’s revelations and visible signs when you yourselves bear witness to their truth and verity