28:19
فَلَمَّآ أَنْ أَرَادَ أَن يَبْطِشَ بِٱلَّذِى هُوَ عَدُوٌّ لَّهُمَا قَالَ يَـٰمُوسَىٰٓ أَتُرِيدُ أَن تَقْتُلَنِى كَمَا قَتَلْتَ نَفْسًۢا بِٱلْأَمْسِ ۖ إِن تُرِيدُ إِلَّآ أَن تَكُونَ جَبَّارًا فِى ٱلْأَرْضِ وَمَا تُرِيدُ أَن تَكُونَ مِنَ ٱلْمُصْلِحِينَ
And when he wanted to strike the one who was an enemy to both of them, he said, "O Moses, do you intend to kill me as you killed someone yesterday? You only want to be a tyrant in the land and do not want to be of the amenders."
Context in Surah Al-Qasas
Nearby ayahs help place verse 28:19 in sequence and meaning.
قَالَ رَبِّ بِمَآ أَنْعَمْتَ عَلَىَّ فَلَنْ أَكُونَ ظَهِيرًا لِّلْمُجْرِمِينَ
He said, "My Lord, for the favor You bestowed upon me, I will never be an assistant to the criminals."
فَأَصْبَحَ فِى ٱلْمَدِينَةِ خَآئِفًا يَتَرَقَّبُ فَإِذَا ٱلَّذِى ٱسْتَنصَرَهُۥ بِٱلْأَمْسِ يَسْتَصْرِخُهُۥ ۚ قَالَ لَهُۥ مُوسَىٰٓ إِنَّكَ لَغَوِىٌّ مُّبِينٌ
And he became inside the city fearful and anticipating [exposure], when suddenly the one who sought his help the previous day cried out to him [once again]. Moses said to him, "Indeed, you are an evident, [persistent] deviator."
وَجَآءَ رَجُلٌ مِّنْ أَقْصَا ٱلْمَدِينَةِ يَسْعَىٰ قَالَ يَـٰمُوسَىٰٓ إِنَّ ٱلْمَلَأَ يَأْتَمِرُونَ بِكَ لِيَقْتُلُوكَ فَٱخْرُجْ إِنِّى لَكَ مِنَ ٱلنَّـٰصِحِينَ
And a man came from the farthest end of the city, running. He said, "O Moses, indeed the eminent ones are conferring over you [intending] to kill you, so leave [the city]; indeed, I am to you of the sincere advisors."
فَخَرَجَ مِنْهَا خَآئِفًا يَتَرَقَّبُ ۖ قَالَ رَبِّ نَجِّنِى مِنَ ٱلْقَوْمِ ٱلظَّـٰلِمِينَ
So he left it, fearful and anticipating [apprehension]. He said, "My Lord, save me from the wrongdoing people."