The relevant verses of the Holy Book such as those to follow are an observatory from which we may look at angels:

By the loosed ones successively storming tempestuously; by the scatterers scattering and the severally severing and those hurling a reminder excusing or warning.

By those that pluck out violently; and those that draw out gently; by those that float serenely and those that outstrip suddenly; by those that direct an affair.

... In (the Night of Power) the angels and the spirit descend by the leave of their Lord upon every command.

... A Fire whose fuel is men and stones and over which are harsh terrible angels who disobey not God in what He commands them and do what they are commanded.

Glory be to Him! Nay but they are honored servants that outstrip Him not in speech and perform as He commands.