So Allah protected him from the evils they plotted, and the people of Pharaoh were enveloped by the worst of punishment -
فَوَقَاهُ اللَّهُ سَيِّئَاتِ مَا مَكَرُوا ۖ وَحَاقَ بِآلِ فِرْعَوْنَ سُوءُ الْعَذَابِ
So Allah protected him from the evils they plotted, and the people of Pharaoh were enveloped by the worst of punishment -
فَوَقَاهُ اللَّهُ سَيِّئَاتِ مَا مَكَرُوا ۖ وَحَاقَ بِآلِ فِرْعَوْنَ سُوءُ الْعَذَابِ