"And We helped him" meaning: Noah, "against the people" meaning: over the people; according to the tafsir of al-Suddi.
Surah al-Anbiya' from (verse 78 to verse 82).
﴿ونصرناه﴾ يَعْنِي: نوحًا ﴿من الْقَوْم﴾ يَعْنِي: عَلَى الْقَوْمِ؛ فِي تَفْسِيرِ السّديّ.
سُورَة الْأَنْبِيَاء من (آيَة ٧٨ آيَة ٨٢).