Joel 3:6
The children also of Judah and the children of Jerusalem have ye sold unto the Grecians, that ye might remove them far from their border.
Cross-reference
Joel 3:3
Parallel
Joel 3:3 also describes selling God's people, reinforcing the same indictment of trading Israelites.
Joel 3:8
Contrast
Joel 3:8 reverses the action: God sells the oppressors' children to Judah as judgment for selling Judah to Greeks.
Ezekiel 27:13
Historical context
Ezekiel 27:13 lists Javan (Greece) trading slaves—the same destination and slave trade Joel condemns for Judah.
Amos 1:6
Parallel
Amos 1:6 condemns Gaza for selling Israelites into exile—the same crime against God's people that Joel denounces.
Deuteronomy 28:32
Related theme
Deuteronomy 28:32 curses Israel with children given to foreigners—the same loss Joel condemns when Judah is sold to Greeks.
Deuteronomy 28:68
Related theme
Deuteronomy 28:68 warns of being sold as slaves but with no buyer—Joel describes the sale itself, a related curse of exile.