Two of the approximately 300 direct or indirect references in scripture to angels. That is a lot of talk about angels. Lots MORE talk in the world. Lots of interest. If there is such a thing as a universal idea, one that cuts across cultures and religions, common through the centuries, it is this belief in angels.
Angels litter the metaphysical landscape from ancient times to the present.
God has given angels higher knowledge, power and mobility than we. God has given them an ambassadorial charge, designated and empowered them as holy deputies. In general, in texts where an angel appears, the task is to convey the message or do something on behalf of God. Since the focus of the text is on the message, the messenger is rarely described in detail. Thus, the divine emissary may or may not be some sort of supernatural being.