God in Genesis 1 is referred to as Elohim (meaning the Almighty One) and interesting this is in the plural form which substantiates the Trinity of the Godhead – One God in three personalities – the Father, the Son (Jesus Christ) and the Holy Spirit.
When Moses asked God “who shall I say to the Israelites, that sent me”, he was asking God a very difficult question because any name would limit the limitless omnipresent, omniscient and omnipotent Almighty God (Elohim) and God responds by simply saying, I AM THAT I AM. (Exodus 3:14)
But then we see that in the majority of the Bible, God is referred to as LORD (all caps) which in the King James version is transliterated as Jehovah.
How did this term ‘Jehovah‘ come about?
The name Jehovah is derived from the Hebrew verb havah, “to be” or “being”. This word is almost exactly like the Hebrew verb, chavah, “to live” or “life”. havah and chavah, being and life. Interestingly, this is the one name of God in the Holy Scripture, that is not a derivative from His works and unequivocally teaches us of the substance of God – which is being and living.1
So extrapolating God response to Moses, I AM THAT I AM really could be expressed as I will BE that I will BE or I am LIFE that I am LIFE.
Think about it, Our God (Jehovah) is being, is life unto all who seek him.
Want Life? you can call Him Jehovah, for HE IS.
1Ref: Names of God, by Nathan Stone.