I am Iron man

An amazing song by British band Black Sabbath, Iron Man is known as the song that put Black Sabbath on the charts. But, who is Iron Man? Some people believe that this song depicts the life of Jesus and the coming of the apocalypse. In the lyrics,
"He was turned to steel,
In the great Magnetic field,
Where he traveled time,
For the future of mankind,

Now the time is here,
For Iron man to spread fear,
Vengeance from the grave,
Kills the people he once saved."

it is believed to be saying that Jesus was turned to flesh to die and save mankind, but at the same time, kills the very people he was sent to save.

I, however, don't believe this. I believe that this song talks about a person who is extremely different, maybe a little crazy, but good, sacrifices his life(literally or not)for humankind. On the other hand, the very people he died for never acknowledged his good deed. After sacrificing himself, he sees how everybody treats him, nobody cares that he gave his life to save the lives of the people he loved. As a result he sees that his sacrifice was in vain. This guy had everything, but he gave it all away to let humanity live. Since then, he has held a grudge against humanity, despite his best wishes to help he comes back with a new found rage and takes the anger out on the very people he once saved.