"Am I correct to state that there is only one Jehovah, one true God to worship and these names refer to the one Jehovah God. So the name Jehovah is not used for multiple beings, Jehovah means the one true Creator?"
Thats a simple question to answer rm,unless of course you believe in the trinity,the triune god etc,then these passages would make little sense
As has been explained in many threads and ignored in just as many threads,the names of God,were able to be used by his divine right and God given authority by Gods son while he was here on earth representing his father
So the answer to your question,is two beings have the right to use jehovah,el shaddai,i am etc,any name refering to the one God ,who is defined in the bible as the father 1cor8.6