What does it mean that God’s name is “YAHWEH?” First, the actual name found in the original scriptures is called the “tetragrammaton,” referring to the four letters Y-H-W-H. The vowel letters were added to the name in order to enable us to articulate the letters that identify God this way. The scriptures will teach us that the LORD as YAHWEH is:
 
The Creator of all things in heaven and earth
The Light of the world
Supremely glorious
Eternally self-existing and self-sustaining (aseity)