That is what I believe, that is what I believe the Bible teaches. I do not know any other way of stating this. He is speaking for all three, speaking as one, for they are one, beside them there are no other. They are the only ones to whom we must list to follow and obey. They are the only ones, Christ most specifically, by whom we can be save.
Salvation comes from no others.
That isn't what it says. It says there are no other gods. He doesn't even know of any. None created before and none created after. I believe it.