I had a vision of nuclear holocaust on top of me
And this is prophecy, the words that I speak from my lungs
The severed head of John the Baptist speaking in tongues

from Immortal Technique – Internally Bleeding Lyrics on Rap Genius

He feels he is the messenger, the savior of us and he does this with his music, comparing them to the likes of john the baptist speaking in tongues. This could also refer to his deep lines in which you must look into to really understand.

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