And about those of the seed of Jacob it is stated: (Deut. 33:28) And Israel dwelt securely, alone is the abode of Jacob... It is stated here badad (alone), and it is stated there, in another place: (Deut. 32:12) Y”Y alone (badad) shall lead him, and there is no foreign god with him.
This will be in the days of King Messiah, when there shall be no refuse in Israel, rather: Y”Y alone shall lead him...
And who is the refuse? They are future converts. And because of this, the Masters of the Mishnah have established:cxxixBT’Avodah Zarah 3b ‘converts are not accepted in the messianic age’.