I really like your style, great vocals as well! "But....." (and remember, I'm just one opinion in cyberspace lol)

Lyrically it seems like you have two songs here. Your chorus is so powerful that I forget you're singing about a lost friend, and your hook "Who I Am" makes it about yourself.

Just a thought...
If there's a God above
Talk to me
If you're a God of love
Explain to me
Without my friend, I can't understand
Who I Am smile