(And it was not (vouchsafed)) it was not permissible (to any mortal that Allah should speak to him) directly without a veil (unless (it be) by revelation) in dream (or from behind a veil) as when He spoke with Moses (pbuh) (or (that) He sendeth a messenger) i.e. Gabriel, such as when He sent him to the Prophet Muhammad (pbuh) (to reveal what He will) of commands and prohibitions (by His leave) by His command. (Lo! He is Exalted) more exalted than all created beings, (Wise) in His command and decree.