Surah An-Nur 24:12

لَّوْلَآ إِذْ سَمِعْتُمُوهُ ظَنَّ ٱلْمُؤْمِنُونَ وَٱلْمُؤْمِنَـٰتُ بِأَنفُسِهِمْ خَيْرًا وَقَالُوا۟ هَـٰذَآ إِفْكٌ مُّبِينٌ

Why, when you heard it, did not the believing men and believing women think good of themselves [i.e., one another] and say, "This is an obvious falsehood"?

Translation: Saheeh International

Tafsir

Why when you first heard about it did the believing men and women not think good of themselves that is why did some not think good of others and say ‘This is a manifest calumny?’ this is a patent lie? there is a shift here in the address from the second to the third person in other words why did you not assume good of …

Excerpt from Tafsir al-Jalalayn, commentary on 24:12, via Quran.com. The reader has the full commentary and 9 more tafsirs.