Recently, many people living in my area of the UK received a 'round-robin' letter from the J.W.s inviting anyone interested to attend a Bible study with them. The content of the letter was pretty bland, but they quoted from Romans 10:13 as follows: 'For whoever calls upon the name of Jehovah will be saved.'
I replied to the letter as follows:-
'Thank you for your letter which I received yesterday. I am always interested to discuss the word of God and will be very happy to meet with you at some point.
However, I noticed that the only verse from the Bible that you mentioned, you misquoted. Romans 10:13 says, “Everyone who calls upon the name of the Lord shall be saved.” The Greek word which you have translated as ‘Jehovah’ is kurios, which means ‘Lord.’ It is true, of course, that the Apostle Paul is quoting from Joel 2:32 which uses the Hebrew term YHWH, which is often translated as ‘Jehovah’ or, more accurately, as ‘Yahweh,’ but neither the Lord Jesus Christ nor any of the divinely-inspired writers of the New Testament ever use that word to describe God. Rather they use the words theos, ‘God,’ kupios, ‘Lord,’ or pater, ‘Father,’ which is the name by which Christians are instructed to address Him (Matthew 6:9).
So to whom is Paul referring in Romans 10:13? Well, we need only go back four verses to find the answer. Romans 10:9. ‘That if you confess with your mouth the Lord (Gk. kurios) Jesus and believe in your heart that God has raised Him from the dead, you will be saved.’ Now what does it mean to call upon the name of the Lord, if not to confess Him with one’s mouth? So we are left with the inevitable conclusion that the Lord Jesus is indeed ‘Jehovah’!'
There was a bit more, but that is the important part. Needless to say, I am still waiting for a reply.