Duhh... you might be thinking, of course G stands for God in a Bible alphabet. You don't need to be a scientist to figure that out. But let's make sure there will be no confusion about the identity of this God.
He is the God of Israel! He is the God who shows favor and love to Israel and the Jewish people. This might be politically incorrect, but it is Biblical.
He is the God of creation. He created the vastness of the universe and the smallness of humanity. Because He has the overall picture, He alone is able to give us purpose and meaning in life.
He is the God of love, because no matter what we have done (or failed to do) He is waiting for our friendship. Only His love and forgiveness can truly fill the emptiness that we often try to fill up with substitutes (whether chocolate or drugs).
He is the God of peace who wants His followers to live in peace with everyone. His peace, which transcends all understanding, will guard our hearts and minds in Christ Jesus.
And by the way...
He is not the same God as Allah, because he has a Son who is called Jesus Christ, the Messiah, Savior of the world.