The Dati Leumi, the Religious Zionists, who constitute the ideological backbone of the settler movement, and have a lot of political influence in Israel, absolutely believe in their duty to govern the biblical land. For many, holding the West Bank is a religious obligation, and they consider the Golan settled and annexed. Religiously, the same principle that justifies them holding Golan applies to these territories.
Here are some recent statements from political leaders:
Bezalel Smotrich (Finance Minister, Religious Zionist party) "it is written that the future of Jerusalem is to expand to Damascus."
Daniella Weiss (prominent settler leader) said in 2024: "We know from the Bible that the real borders of Greater Israel are the Euphrates and the Nile."
Benjamin Netanyahu said he's on a "historic and spiritual mission" and that he is "very" attached to the vision of Greater Israel, which includes Palestinian areas and possibly also places that are part of Jordan, Egypt, Syria, and Lebanon.
Yair Lapid, the secular centrist opposition leader (!). "I don't think I have a dispute on the biblical level about what the original borders of Israel are... I support anything that will allow the Jews a big, vast, strong land."
Mike Huckabee (US Ambassador to Israel) "It would be fine if they took it all."