2 And God spake unto Moses, and said unto him, I am the Lord:
3 And I appeared unto Abraham, unto Isaac, and unto Jacob, by the name of God Almighty, but by my name JEHOVAH was I not known to them.
We previously read of Moses asking the Lord what His name was so that he could tell it to the Israelites, and God told Moses to introduce Him as “I AM,” which is a translated form of YHWH/Yahweh/Jehovah. In today’s verses we learn the additional detail that the patriarchs did not, themselves, know this name. Though God had an extremely close relationship with these historical men, apparently He never disclosed to them His actual name. He was just their “God,” or their “Lord.”
However, this fact is not reflected in the earlier text of the Bible. This is not at all that the first time that the name of Jehovah has been used. It first appeared in Genesis 2:4 (the English translation writes this name as “the LORD” instead of Jehovah), and there are also verses where the patriarchs are said to speak the name of “Jehovah” (written in English as all-caps GOD). The simplest explanation is that the patriarchs did not actually use God’s name, but when their account was written, the name was inserted by the author, since at that time the name would have been common knowledge.
And if this is the case, then for Moses to have information revealed to him that the patriarchs never had would signify how pivotal his role was to the Israelite people. Put simply, Moses was the single most influential figure sent to the Hebrews until the birth of Christ. Of course, at the time of this conversation with the Lord, Moses had not yet done anything remarkable for the people of Israel. God already knew Moses’s destiny, though, and entrusted him with information that was befitting of who he would become, not who he already was.