Concise Quran Commentary
The truth is that it is they who ruin things, but they do not admit this, nor do they know that their actions are the cause of all ruin.
Tafsir for this Ayah
Surah 2 : Ayah 12
Surah 2 : Ayah 12
أَلَآ إِنَّهُمْ هُمُ ٱلْمُفْسِدُونَ وَلَـٰكِن لَّا يَشْعُرُونَ
Indeed, it is they who spread corruption, but they do not realize.