﴿ قُل لَّوْ كَانَ فِى ٱلْأَرْضِ مَلَٰٓئِكَةٌۭ يَمْشُونَ مُطْمَئِنِّينَ لَنَزَّلْنَا عَلَيْهِم مِّنَ ٱلسَّمَآءِ مَلَكًۭا رَّسُولًۭا ﴾

“Say: "If angels were walking about on earth as their natural abode, We would indeed have sent down unto them an angel out of heaven as Our apostle."”

Say to them ‘Had there been in the earth instead of humans angels walking and living secure We would have sent down to them from the heaven an angel as Messenger’ for when a messenger is sent to a people he is always of their kind so that they are able to speak to him and understand from him his message.