FAQ: I was taught that Jesus is the “Lord” (Yahweh) in the Old Testament. Do you have any teachings about this?
Yes, in fact we deal with this in our book One God & One Lord. One of the primary reasons for believing this was that in the Old Testament Yahweh would occasionally appear to people. Although this is revolutionary information to many people, it should not be unexpected. God created people to fellowship with them, and so the fact that He would show up in some form should not surprise us. For a detailed explanation of your question, please see the information we have posted on these two links:
An explanation of Genesis 18:1 – 2 (taken from Appendix A)
Chapter 12, God’s Namesake in Action.