That is because Allah is the protector of those who have believed and because the disbelievers have no protector.
The Saheeh International Quran Translation
ذَٰلِكَ بِأَنَّ ٱللَّهَ مَوْلَى ٱلَّذِينَ ءَامَنُوا۟ وَأَنَّ ٱلْكَٰفِرِينَ لَا مَوْلَىٰ لَهُمْThat is because Allah is the protector of those who have believed and because the disbelievers have no protector.