Jamieson, Fausset and Brown on Ezekiel 47:22

22. to the strangers--It is altogether unprecedented under the old covenant, that "strangers" should have "inheritance" among the tribes. There would not be room locally within Canaan for more than the tribes. The literal sense must therefore be modified, as expressing that Gentiles are not to be excluded from settling among the covenant-people, and that spiritually their privileges are not to be less than those of Israel (Ro 10:12; Ga 3:28; Ep 3:6; Col 3:11; Re 7:9, 10). Still, "sojourneth," in Eze 47:23, implies that in Canaan, the covenant people are regarded as at home, the strangers as settlers.