These two phrases mean basically the same thing. See how you translated a similar phrase in [Ezekiel 12:15](../12/15.md). Alternate translation: "So I will cause them to separate from each other and live in different nations"(See: [[rc://en/ta/man/translate/figs-parallelism]])
A person who God considers spiritually unacceptable or defiled is spoken of as if the person were physically unclean. (See: [[rc://en/ta/man/translate/figs-metaphor]])
Here the "nations" refer to the people who live in those places. Alternate translation: "the people in other nations" (See: [[rc://en/ta/man/translate/figs-metonymy]])