Analysis of information sources in references of the Wikipedia article "Holy See–Israel relations" in English language version.
Overall, the Vatican's relationship with Israel is based on international law, not theology...
Christians are invited to understand this religious attachment [of the Jews to the Land of Israel] which finds its roots in Biblical tradition, without however making their own any particular religious interpretation of this relationship... the existence of the State of Israel and its political options should be envisaged not in a perspective which is in itself religious, but in their reference to the common principles of international law.
... despite the diplomatic recognition of Israel, Jewish spokespeople have continued to lament the Church's continued reluctance to affirm the theological significance of the Jewish claim to the land and the existence of the State of Israel.