Kabbalah su Isaia 60:21

"These are the generations of Noah..." (Gen. 6:9). Rabbi Chiya opened the discussion with the verses: "Your people also shall be all righteous: they shall inherit the land forever; they shall be the branch of My planting, the work of My hands, that I may be glorified" (Isaiah 60:21). Happy are Yisrael, who occupy themselves with the Torah and are familiar with its paths, through which they will merit the World to Come.

"And I have also established my covenant with them to give them the land of Canaan" (Shemot 6:4). This is because they were circumcised. For all who are circumcised inherit the land. The Torah says, "To give them the land of Canaan." For the land is inherited only by a righteous person and everyone who is circumcised is called righteous, as is written, "Your people also shall be all righteous, they shall inherit the land forever" (Isaiah 60:21). Everyone who is circumcised and observes the sign of the covenant is called righteous. Come and learn this from Joseph, who was not called righteous in his life until he observed that covenant, the sign of the holy covenant. Once he observed it, he was called righteous, namely, Joseph the righteous.

When your nation are all righteous, they will inherit the land forever (Isa. 60:21).