Joel 3:6

6 and ye have sold the children of Juda and the children of Jerusalem to the children of the Greeks, that ye might expel them from their coasts.

Joel 3:6 Meaning and Commentary

Joel 3:6

The children also of Judah and the children of Jerusalem
Not children in age literally, as Kimchi, kidnapped or bought by the Tyrians; but the inhabitants of Judah and Jerusalem: have ye sold unto the Grecians;
or sons of Javan; it was one part of the merchandise of Tyre to trade in the persons of men; and Javan, or the Greeks, with others, were their merchants for them, ( Ezekiel 27:13 ) ; and the souls of men are a part of the trade of the merchants of Rome, typified by the Tyrians, ( Revelation 18:13 ) ; that ye might remove them far from their border;
from their own land, or place of dwelling, that so they might not be easily redeemed, and return to it any more. Rome, the antichristian Tyre, trading with the souls of men, is to their eternal damnation, as much as in them lies. Cocceius interprets this of the children of the church being trained up in the doctrine of Aristotle, in the times of the schoolmen.

Joel 3:6 In-Context

4 And what have ye to do with me, O Tyre, and Sidon, and all Galilee of the Gentiles? do ye render me a recompense? or do ye bear malice against me? quickly and speedily will I return your recompense on your own heads:
5 because ye have taken my silver and my gold, and ye have brought my choice ornaments into your temples;
6 and ye have sold the children of Juda and the children of Jerusalem to the children of the Greeks, that ye might expel them from their coasts.
7 Therefore, behold, I raise them up out of the place whither ye have sold them, and I will return your recompense on your own heads.
8 And I will sell your sons and your daughters into the hands of the children of Juda, and they shall sell them into captivity to a far distant nation: for the Lord has spoken .

The Brenton translation of the Septuagint is in the public domain.