The Family of Imran
لَقَدْ مَنَّ ٱللَّهُ عَلَى ٱلْمُؤْمِنِينَ إِذْ بَعَثَ فِيهِمْ رَسُولًا مِّنْ أَنفُسِهِمْ يَتْلُوا۟ عَلَيْهِمْ ءَايَـٰتِهِۦ وَيُزَكِّيهِمْ وَيُعَلِّمُهُمُ ٱلْكِتَـٰبَ وَٱلْحِكْمَةَ وَإِن كَانُوا۟ مِن قَبْلُ لَفِى ضَلَـٰلٍ مُّبِينٍ
Certainly did Allah confer [great] favor upon the believers when He sent among them a Messenger from themselves, reciting to them His verses and purifying them and teaching them the Book and wisdom, although they had been before in manifest error.
Nearby ayahs help place verse 3:164 in sequence and meaning.
أَفَمَنِ ٱتَّبَعَ رِضْوَٰنَ ٱللَّهِ كَمَنۢ بَآءَ بِسَخَطٍ مِّنَ ٱللَّهِ وَمَأْوَىٰهُ جَهَنَّمُ ۚ وَبِئْسَ ٱلْمَصِيرُ
So is one who pursues the pleasure of Allah like one who brings upon himself the anger of Allah and whose refuge is Hell? And wretched is the destination.
هُمْ دَرَجَـٰتٌ عِندَ ٱللَّهِ ۗ وَٱللَّهُ بَصِيرٌۢ بِمَا يَعْمَلُونَ
They are [varying] degrees in the sight of Allah, and Allah is Seeing of whatever they do.
أَوَلَمَّآ أَصَـٰبَتْكُم مُّصِيبَةٌ قَدْ أَصَبْتُم مِّثْلَيْهَا قُلْتُمْ أَنَّىٰ هَـٰذَا ۖ قُلْ هُوَ مِنْ عِندِ أَنفُسِكُمْ ۗ إِنَّ ٱللَّهَ عَلَىٰ كُلِّ شَىْءٍ قَدِيرٌ
Why [is it that] when a [single] disaster struck you [on the day of Uhud], although you had struck [the enemy in the battle of Badr] with one twice as great, you said, "From where is this?" Say, "It is from yourselves." Indeed, Allah is over all things competent.
وَمَآ أَصَـٰبَكُمْ يَوْمَ ٱلْتَقَى ٱلْجَمْعَانِ فَبِإِذْنِ ٱللَّهِ وَلِيَعْلَمَ ٱلْمُؤْمِنِينَ
And what struck you on the day the two armies met was by permission of Allah that He might make evident the [true] believers.