Nothing in the Torah,Psalms or prophets supports your statement in fact it contradicts it so many times it is laughable.
Please cite some verses from the Torah that supports your claim or apologize for calling all Jews pagans.
I don't look to the OT for this position.
The NT is sufficient.
The Lord Jesus Christ is the Jehovah of the OT.
The Jehovah of those who call themselves Jews today is not the Lord Jesus Christ, therefore not the Jehovah of the OT.
Not difficult.