فَأَعْقَبَهُمْ نِفَاقًا فِى قُلُوبِهِمْ إِلَىٰ يَوْمِ يَلْقَوْنَهُۥ بِمَآ أَخْلَفُوا۟ ٱللَّهَ مَا وَعَدُوهُ وَبِمَا كَانُوا۟ يَكْذِبُونَ
So He penalized them with hypocrisy in their hearts until the Day they will meet Him - because they failed Allāh in what they promised Him and because they [habitually] used to lie.
Dimensional Analysis
Context
But when He did bestow of His bounty, they became covetous, and turned back (from their covenant), averse (from its fulfilment).
So He hath put as a consequence hypocrisy into their hearts, (to last) till the Day, whereon they shall meet Him: because they broke their covenant with Allah, and because they lied (again and again).
Know they not that Allah doth know their secret (thoughts) and their secret counsels, and that Allah knoweth well all things unseen?
Related Verses
واللهُ أعلمُ بالصَّواب