Re: Meaning of this verse
As far as I am able to understand Iqbal(Human Being) is Addressing Allah and saying Muhammad Bhi Taira (The Messenger through whom Allah revealed Quran for mankind), Jibril Bhee (The Angle who enacted as medium between Allah and his Prophet for Quran), Quran Bhee Taira (Finally the message itself i.e. the Quran)
Iqbal simply says, the Messenger is of Allah, the Angle who brougth Quran is of Allah and Quran itself is of Allah then what is stated within Quran (Harf e Sheeren) is representation of yours (Allah’s) or mine (Human being)