Waitha baddalnaayatan makana ayatin waAllahu aAAlamu bima yunazzilu qaloo innama anta muftarin bal aktharuhum la yaAAlamoona
When We substitute one revelation for another,- and Allah knows best what He reveals (in stages),- they say, "Thou art but a forger": but most of them understand not.
Say, the Holy Spirit has brought the revelation from thy Lord in Truth, in order to strengthen those who believe, and as a Guide and Glad Tidings to Muslims.
We know indeed that they say, "It is a man that teaches him." The tongue of him they wickedly point to is notably foreign, while this is Arabic, pure and clear.
Man kafara biAllahi min baAAdi eemanihi illa man okriha waqalbuhu mutmainnun bialeemani walakin man sharaha bialkufri sadran faAAalayhim ghadabun mina Allahi walahum AAathabun AAatheemun
Any one who, after accepting faith in Allah, utters Unbelief,- except under compulsion, his heart remaining firm in Faith - but such as open their breast to Unbelief, on them is Wrath from Allah, and theirs will be a dreadful Penalty.