Recite thou that which hath been revealed unto thee of the Book and establish thou the prayer; verily prayer preventeth man from indecency and that which is disreputable: and surely the remembrance of Allah is the greatest. And Allah knoweth that which ye perform. 45 ۞ And argue not with the people of the Scripture (Jews and Christians), unless it be in (a way) that is better (with good words and in good manner, inviting them to Islamic Monotheism with His Verses), except with such of them as do wrong, and say (to them): "We believe in that which has been revealed to us and revealed to you; our Ilah (God) and your Ilah (God) is One (i.e. Allah), and to Him we have submitted (as Muslims)." 46 Likewise We have sent down the Book to you. Those to whom We gave the scripture believe in it, and so do some of your own people. Only those who deny the truth reject Our revelations. 47 (O Prophet), you did not recite any Book before, nor did you write it down with your hand; for then the votaries of falsehood would have had a cause for doubt. 48 But it is a set of Clear Signs in the hearts of those who have been endowed with knowledge. None except the utterly unjust will deny Our Signs. 49 They say: “Why were Signs from his Lord not sent down upon him?” Say: “The Signs are only with Allah. As for me, I am no more than a plain warner.” 50 Is it not sufficient for them that We have sent down to you the Book (the Quran) which is recited to them? Verily, herein is mercy and a reminder (or an admonition) for a people who believe. 51