وَقَالُواْ لَوۡلَآ أُنزِلَ عَلَيۡهِ مَلَكٞۖ وَلَوۡ أَنزَلۡنَا مَلَكٗا لَّقُضِيَ ٱلۡأَمۡرُ ثُمَّ لَا يُنظَرُونَ
And they would say, “Why has not an angel been sent down unto him?” Had We sent down an angel, then the matter would be decreed, and they would be granted no respite
Author: The Study Quran