Good, Peace
وَإِذْ قَالَ مُوسَىٰ لِقَوْمِهِ يَا قَوْمِ إِنَّكُمْ ظَلَمْتُمْ أَنْفُسَكُمْ بِاتِّخَاذِكُمُ الْعِجْلَ فَتُوبُوا إِلَىٰ بَارِئِكُمْ فَاقْتُلُوا أَنْفُسَكُمْ ذَٰلِكُمْ خَيْرٌ لَكُمْ عِنْدَ بَارِئِكُمْ فَتَابَ عَلَيْكُمْ ۚ إِنَّهُ هُوَ التَّوَّابُ الرَّحِيمُ {54}
And when Musa said to his people: O people! You have been unjust to yourselves by your taking the calf, therefore repent to your Creator, and kill yourselves, that would be ‘خَيْرٌ’ better for you in the Presence of your Creator: so He Turned to you for surely He is the Oft-turning the Merciful [2:54]
قَالَ الْإِمَامُ ع قَالَ اللَّهُ عَزَّ وَ جَلَّ: وَ اذْكُرُوا يَا بَنِي إِسْرَائِيلَ إِذْ قالَ مُوسى لِقَوْمِهِ عَبَدَةِ الْعِجْلِ يا قَوْمِ إِنَّكُمْ ظَلَمْتُمْ أَنْفُسَكُمْ أَضْرَرْتُمْ بِهَا بِاتِّخاذِكُمُ الْعِجْلَ إِلَهاً فَتُوبُوا إِلى بارِئِكُمْ الَّذِي بَرَّأَكُمْ وَ صَوَّرَكُمْ فَاقْتُلُوا أَنْفُسَكُمْ بِقَتْلِ بَعْضِكُمْ بَعْضاً، يَقْتُلُ مَنْ لَمْ يَعْبُدِ الْعِجْلَ مَنْ عَبَدَهُ
The Imam (Hassan Al-Askari-asws) said: ‘Allah-azwj Mighty and Majestic Said: And recall, O Children of Israel, And when Musa said to his people, the worshippers of the calf, O people! You have been unjust to yourselves – harming yourselves by it by your taking the calf, as a god, therefore repent to your Creator – Who Created you and Shaped you, and kill yourselves, by some of you killing the others – the ones who did not worship the calf to kill the ones who worshipped it,
ذلِكُمْ خَيْرٌ لَكُمْ ذَلِكُمُ الْقَتْلُ خَيْرٌ لَكُمْ عِنْدَ بارِئِكُمْ مِنْ أَنْ تَعِيشُوا فِي الدُّنْيَا وَ هُوَ لَمْ يَغْفِرْ لَكُمْ، فَيَتِمَّ فِي الْحَيَاةِ الدُّنْيَا حَيَاتُكُمْ وَ يَكُونَ إِلَى النَّارِ مَصِيرُكُمْ، وَ إِذَا قُتِلْتُمْ وَ أَنْتُمْ تَائِبُونَ- جَعَلَ اللَّهُ عَزَّ وَ جَلَّ الْقَتْلَ كَفَّارَتَكُمْ، وَ جَعَلَ الْجَنَّةَ مَنْزِلَتَكُمْ وَ مَقِيلَكُمْ
That would be better for you, that killing would be better for you in the Presence of your Creator, than if you were to live in the world when He-azwj has not Forgiven you, and you will complete your lives – the life of the world then your arrival would happen to be into the Fire. And when you do kill and are repentant, Allah-azwj would Make the killing as your expiations, and Make the Paradise as your destination and your resting place (an extract). [1]
[1] Tafseer Imam Hassan Al Askari-asws – S 123