surprising that very little has been made in the past of the apparent fact that the author uses the word Son in two different senses in these verses. In verse 2 it indicates what Jesus is, and always has been, by divine nature; in verses 4ff. it is the Messianic title He receives in connection with some type of change in his human nature. Surely this temporal distinction—that after completing his work Jesus became something he was not before—accords naturally with the context: the participle γενόμενος