Verse 8

وَقَالُوا۟ لَوْلَآ أُنزِلَ عَلَيْهِ مَلَكٌ وَلَوْ أَنزَلْنَا مَلَكًا لَّقُضِىَ ٱلْأَمْرُ ثُمَّ لَا يُنظَرُونَ

And they said; why did not an angel come down to him? However, had We sent down an angel, the entire matter would have been finished and they would not have had a respite.