Who is God?

Who is God? Is He just a dream?
He is the One called Elohim
It means He's mighty, very great
All that exists, He did create

Told Isaiah, prophet of fame,
"I am Yahweh, that is my name!"
Self-existent, unchangeable
I am who I am, Eternal

God is light; no dark in the Lord
His Word is like a two-edged sword
Good and perfect gifts from above
He provides for the birds in love

The heavens were made by His word
Gladly the common people heard
The Word made flesh who dwelt with us
The way to life He did discuss