ויקרא כה,מה: וְגַּם מִבְנֵי הַּתוֹשָׁבִים הַּגָׁרִ ים עִמָׁכֶּם מֵהֶּם תִקְנוּ וּמִמִשְפַּחְתָׁם אֲשֶּר עִמָׁכֶּם אֲשֶּר הוֹלִידוּ בְאַּרְ צְ כֶּם וְהָׁיוּ לָׁכֶּם לַּאֲחֻזָׁה
Baal HaTurim: The word הולידו (begotten) appears twice in the Torah: here “whom they have begotten in the land”; and in Yechezkel’s description of the division of the land “for yourselves and for the converts who dwell among you” (in the time of Moshiach). HaShem commands to give a portion in the land of Yisrael also to converts. Although converts were not granted a portion in the land when the nation entered the Land, in the time of Moshiach they will be granted a portion in the Land.
The non-Jews who joined the Jews at the exodus from Egypt and during the 40 years in the desert, and all were sustained by the manna, received water from the traveling well, and protection by the clouds of glory. However, their conversion was the ulterior motives of being on the side of the victors and benefiting from the daily miracles. Therefore, they did not deserve to share in the Land of Israel. In contrast the converts who joined the Jews during the time of Galus, were sincere with nothing to gain. Thus, Yechezkel was alluding to these converts who would be given a portion in the Land during the time of Moshiach.
