Say, "If there were upon the earth angels walking securely, We would have sent down to them from the heaven an angel [as a] messenger."
The Saheeh International Quran Translation
قُل لَّوْ كَانَ فِى ٱلْأَرْضِ مَلَٰٓئِكَةٌ يَمْشُونَ مُطْمَئِنِّينَ لَنَزَّلْنَا عَلَيْهِم مِّنَ ٱلسَّمَآءِ مَلَكًا رَّسُولًاSay, "If there were upon the earth angels walking securely, We would have sent down to them from the heaven an angel [as a] messenger."