The major Christian innovation was the extension of the Judaic "gods chosen people" franchise to encompass the potentiality of all humanity: it's what made Christianity into a "Universal" religion rather than just a subcult of tutelary Judaism.

-Thats why there's really no such thing as common Judeo-Christian "values": the compass of the deity is just too different and there's certainly no such thing as a "Christian" Zionist. If they are Zionists they have rejected the universality of the Christian deity and returned to Jewish tribalism. The Jews don't want them of course, but they will take their money and votes.