The Romans
وَإِذَا مَسَّ ٱلنَّاسَ ضُرٌّ دَعَوْا۟ رَبَّهُم مُّنِيبِينَ إِلَيْهِ ثُمَّ إِذَآ أَذَاقَهُم مِّنْهُ رَحْمَةً إِذَا فَرِيقٌ مِّنْهُم بِرَبِّهِمْ يُشْرِكُونَ
And when adversity touches the people, they call upon their Lord, turning in repentance to Him. Then when He lets them taste mercy from Him, at once a party of them associate others with their Lord,
Nearby ayahs help place verse 30:33 in sequence and meaning.
۞ مُنِيبِينَ إِلَيْهِ وَٱتَّقُوهُ وَأَقِيمُوا۟ ٱلصَّلَوٰةَ وَلَا تَكُونُوا۟ مِنَ ٱلْمُشْرِكِينَ
[Adhere to it], turning in repentance to Him, and fear Him and establish prayer and do not be of those who associate others with Allah
مِنَ ٱلَّذِينَ فَرَّقُوا۟ دِينَهُمْ وَكَانُوا۟ شِيَعًا ۖ كُلُّ حِزْبٍۭ بِمَا لَدَيْهِمْ فَرِحُونَ
[Or] of those who have divided their religion and become sects, every faction rejoicing in what it has.
لِيَكْفُرُوا۟ بِمَآ ءَاتَيْنَـٰهُمْ ۚ فَتَمَتَّعُوا۟ فَسَوْفَ تَعْلَمُونَ
So that they will deny what We have granted them. Then enjoy yourselves, for you are going to know.
أَمْ أَنزَلْنَا عَلَيْهِمْ سُلْطَـٰنًا فَهُوَ يَتَكَلَّمُ بِمَا كَانُوا۟ بِهِۦ يُشْرِكُونَ
Or have We sent down to them an authority, and it speaks of what they were associating with Him?