In Exodus 4.10 Moses indicates that he was not a capable speaker (in fact, he stuttered!), but later Jewish tradition made him out to be a powerful speaker; and the phrase a great man in words is most naturally taken to mean “one who has a great ability to speak.” Some, however, interpret this phrase as being a reference to the importance of what he said, that is, “a great man in what he said and in what he did.”

Quoted with permission from Newman, Barclay M. and Nida, Eugene A. A Handbook on The Acts of the Apostles. (UBS Handbook Series). New York: UBS, 1972. For this and other handbooks for translators see here .