Truly God sustains the heavens and the earth lest they disappear in other words He prevents them from disappearing. And if wa-la-in the lām is for oaths they were to disappear there is none that can sustain them after Him in other words other than Him. Truly He is ever Forbearing Forgiving in deferring the punishment of the disbelievers.
- 35:4141
۞ إِنَّ اللَّهَ يُمْسِكُ السَّمَاوَاتِ وَالْأَرْضَ أَنْ تَزُولَا ۚ وَلَئِنْ زَالَتَا إِنْ أَمْسَكَهُمَا مِنْ أَحَدٍ مِنْ بَعْدِهِ ۚ إِنَّهُ كَانَ حَلِيمًا غَفُورًا
Verily God holds the heavens and the earth in position lest they deviate; and if they deviated there will be none to hold them in place, apart from Him He is sagacious and forgiving.
- common.revelation-Meccan
- common.hizb : 176