مِن قَبْلُ هُدًى لِّلنَّاسِ وَأَنزَلَ ٱلْفُرْقَانَ ۗ إِنَّ ٱلَّذِينَ كَفَرُوا۟ بِـَٔايَـٰتِ ٱللَّهِ لَهُمْ عَذَابٌ شَدِيدٌ ۗ وَٱللَّهُ عَزِيزٌ ذُو ٱنتِقَامٍ
Asad Quran Translation
aforetime, as a guidance unto mankind, and it is He who has bestowed [upon man] the standard by which to discern the true from the false.4
Behold, as for those who are bent on denying God's messages - grievous suffering awaits them: for God is almighty, an avenger of evil.
It is to be borne in mind that the Gospel frequently mentioned in the Qur'an is not identical with what is known today as the Four Gospels, but refers to an original, since lost, revelation bestowed upon Jesus and known to his contemporaries under its Greek name of Evangelion ("Good Tiding"), on which the Arabicized form Injil is based. It was probably the source from which the Synoptic Gospels derived much of their material and some of the teachings attributed to Jesus. The fact of its having been lost and forgotten is alluded to in the Qur'an in 5:14 . Regarding my rendering of al-furqan as "the standard by which to discern the true from the false", see also note  on the identical phrase occurring in 2:53 .
Malik Quran Translation
before this, as a guidance for mankind and also revealed this Al-Furqan (criterion for judgment between right and wrong). Surely those who reject Allah's revelations will be sternly punished; Allah is Mighty, capable of retribution.
Yusuf Ali Quran Translation
Then those who reject Faith in the Signs of Allah will suffer the severest penalty and Allah is Exalted in Might Lord of Retribution.
Mustafa Khattab Quran Translation
previously, as a guide for people, and ˹also˺ revealed the Standard ˹to distinguish between right and wrong˺.1
Surely those who reject Allah’s revelations will suffer a severe torment. For Allah is Almighty, capable of punishment.
The Standard (Al-Furqân) is one of the names of the Quran.
Piktal Quran Translation
Aforetime, for a guidance to mankind; and hath revealed the Criterion (of right and wrong). Lo! those who disbelieve the revelations of Allah, theirs will be a heavy doom. Allah is Mighty, Able to Requite (the wrong).
Min qablu hudan lilnnasi waanzala alfurqana inna allatheena kafaroo biayati Allahi lahum AAathabun shadeedun waAllahu AAazeezun thoo intiqamin