Why did the Old Testament writers use 'Lord' instead of pronouncing the name Jehovah?
Out of extreme reverence, devout Jews refused to breathe the name Jehovah aloud, substituting the term Lord instead. Jehovah remained on their mind as the name of the God of Abraham, Isaac, and Jacob. They honored the name too highly to speak it, so Lord became the spoken substitute.
Les explains that Jehovah was the synonymous name for Lord in the Old Testament, but a good Jew would not even breathe that word out loud. They had too much reverence for it, so they used the term Lord, while Jehovah was still on their mind as their God. Jehovah was the name of the God of Abraham, Isaac, and Jacob. This connects to Saul of Tarsus, who mentally asked, “Who are you, Jehovah? Who are you, Lord?” and heard, “I am Jesus.” Les teaches that Genesis 2:4 begins the reference to Jehovah, God the Son, the second person of the Trinity. Thus God the Son and Jehovah are one and the same personality; He became flesh by the virgin birth, and now Jehovah’s name is Jesus.