ذَٰلِكَ بِأَنَّهُمْ ءَامَنُوا۟ ثُمَّ كَفَرُوا۟ فَطُبِعَ عَلَىٰ قُلُوبِهِمْ فَهُمْ لَا يَفْقَهُونَ
That is because they believed, and then they disbelieved; so their hearts were sealed over, and they do not understand.
Dimensional Analysis
Context
They have made their oaths a screen (for their misdeeds): thus they obstruct (men) from the Path of Allah: truly evil are their deeds.
That is because they believed, then they rejected Faith: So a seal was set on their hearts: therefore they understand not.
When thou lookest at them, their exteriors please thee; and when they speak, thou listenest to their words. They are as (worthless as hollow) pieces of timber propped up, (unable to stand on their own). They think that every cry is against them. They are the enemies; so beware of them. The curse of Allah be on them! How are they deluded (away from the Truth)!
Related Verses
واللهُ أعلمُ بالصَّواب