jesus:. origin story

there's a verse in the bible "behold God is my salvation" and other verses over and over confirm this idea yet people can't comprehend it .. first of all God himself.. 2ndly his becoming the messiah in human form .. not that a human was a god but that God himself became a human for a time to walk the earth among us.. this is the core of christian faith .. and it has somehow been removed and voided of it's jewish origins without which it is a somewhat empty story .. but will be complete before the end.. happy 5787