On the face of it, I disagree that "the thread of salvation through the Messiah runs throughout the whole" of the Bible. I found that the Dead Sea Scrolls support my position:

The messiah, according to Jewish [and early Christian] belief, was not a God that would deliver his people by clearing their way to heaven. The messiah was to be an empowered King who would destroy the enemies of the Jews and regain their Holy Land.