What does Exodus 3:21 mean?
After giving a message for the elders of Israel, and a prediction that Pharaoh will refuse their request for freedom to worship God, God gives some predictions.God promises the Jews would have "favor" among the Egyptians, even as they leave a ruined and scarred nation behind. The fulfillment of this prophecy is found in Exodus 12:36: "And the LORD had given the people favor in the sight of the Egyptians …" Following the death of the firstborn sons and animals of Egypt, and the other catastrophic plagues caused by their enslavement of the Hebrews, the Egyptians will give the Jews whatever they want and urge them to leave immediately (Exodus 12:33–36).
Exodus 3:22 further explains the Jews will leave Egypt with much plunder. Exodus 12:35 specifically notes the fulfillment of this prediction involving silver and gold jewelry and clothing. Similar to a winning nation in war, this would serve as the equivalent of plundering the Egyptians. The Jews would not leave destitute, but rather in victory over those who had oppressed them.