We were introduced to Jethro back in chapter 2,
where he was called Reuel. It is possible that the man had two names, which
was common in ancient times. It is also possible that Reuel was the name
of Jethro's father, which would actually make him Moses'grandfather-in-law
(see Num. 10:29). But perhaps the most likely explanation is that Jethro,
which means "his excellency," was a formal title indicating the man's status.
In any case, he is called Jethro throughout the rest of Exodus.
