Is not allowed to introduce himself to other Angels unless there is danger. When Jesus was alive Archangel Gabriel & Michael held office in the land & heard from all of the Angels in authority & otherwise intentions concerning him. If their proper office was known all would have been discrete. So instead they met those about town & in lower administration & judged them in secret before God. So Jesus was kept from unexpected harm. Michael commands one seventh of the Angels of men & women, so that lives can be destroyed or made good.