The word “lord” is a term that is applied in the Scriptures to Jehovah, Jesus, angels, humans and even false deities. The basic meaning is “master” or “owner.” It is also a title of respect. In the appendix, the translators of the New World Translation make the observation that each time ha-A·dōnʹ occurs in the Hebrew Scriptures, it refers to Jehovah. This is a fact, and appropriately so, since the definite article (ha) points to him exclusively as “Lord” in the highest sense.

So, with the above in mind, it can be seen that while certain Hebrew translations of the Greek Scriptures employ the expression ha-A·dōnʹ at Romans 10:9, we are not to conclude from this that the “Lord” here is Jehovah, making Jesus and God one and the same Lord, as claimed by the Trinitarians. Nevertheless, wherever this expression occurs in the Hebrew Scriptures, it refers to Jehovah.