38:13
وَثَمُودُ وَقَوْمُ لُوطٍ وَأَصْحَـٰبُ لْـَٔيْكَةِ ۚ أُو۟لَـٰٓئِكَ ٱلْأَحْزَابُ
And [the tribe of] Thamud and the people of Lot and the companions of the thicket. Those are the companies.
Sad
وَثَمُودُ وَقَوْمُ لُوطٍ وَأَصْحَـٰبُ لْـَٔيْكَةِ ۚ أُو۟لَـٰٓئِكَ ٱلْأَحْزَابُ
And [the tribe of] Thamud and the people of Lot and the companions of the thicket. Those are the companies.
Nearby ayahs help place verse 38:13 in sequence and meaning.
جُندٌ مَّا هُنَالِكَ مَهْزُومٌ مِّنَ ٱلْأَحْزَابِ
[They are but] soldiers [who will be] defeated there among the companies [of disbelievers].
كَذَّبَتْ قَبْلَهُمْ قَوْمُ نُوحٍ وَعَادٌ وَفِرْعَوْنُ ذُو ٱلْأَوْتَادِ
The people of Noah denied before them, and [the tribe of] 'Aad and Pharaoh, the owner of stakes,
إِن كُلٌّ إِلَّا كَذَّبَ ٱلرُّسُلَ فَحَقَّ عِقَابِ
Each of them denied the messengers, so My penalty was justified.
وَمَا يَنظُرُ هَـٰٓؤُلَآءِ إِلَّا صَيْحَةً وَٰحِدَةً مَّا لَهَا مِن فَوَاقٍ
And these [disbelievers] await not but one blast [of the Horn]; for it there will be no delay.