Tafsir of Al-Waqi'ah 56:85

ونحن أقرب إليه منكم

But We are nearer to him than you, with Our angels,

ولكن ﻻ تبصرون

but you see not. you cannot see the angels. Allah the Exalted said in another Ayah,

وهو القاهر فوق عباده ويرسل عليكم حفظة حتى إذا جاء أحدكم الموت توفته رسلنا وهم ﻻ يفرطون

ثم ردوا إلى الله مولهم الحق أﻻ له الحكم وهو أسرع الحسبين

He is the Irresistible over His servants, and He sends guardians (angels) over you, until when death approaches one of you, Our messengers (angel of death and his assistants) take his soul, and they never neglect their duty. Then they are returned to Allah, their true Protector. Surely, for Him is the judgement and He is the swiftest in taking account. (6:61-62) Allah's statement,

فلوﻻ إن كنتم غير مدينين