The Master Communicator
Christ is the Best communicator. When, He speaks to one person, He's actually talking to others. He didn't just preach to people alone, but, included angels. That's why He said, ".. There are those [I.e. angels/the two witness] listening to me now, that won't die, till they see His coming ..". Apart from Christ [God Himself], Angels don't really know God, whatever they know, they learnt from Man. E.g. Satan making enquiry from Eve at Eden, except for the time when he was the then Lucifer, i.e. the light {knowledge/wisdom} bearer (file documents) of God, before he became a "corrupt file", and was "formatted". That's one of many reasons why he was able to deceive some angels. The ones that overcame him, i.e. Gabriel/Michael, had faith.