What Does Exodus 12:50 Mean?

All the people of Israel did so; as the LORD commanded Moses and Aaron, so they did. The compliance report of verse 50 closes the Passover statute section with perfect communal obedience: all Israel did exactly as YHWH commanded through Moses and Aaron. The formula "as the LORD commanded Moses and Aaron, so they did" is the double-compliance formula: the commanded authority (YHWH), the mediated authority (Moses and Aaron), and the compliant community (all Israel) are all aligned. There is no partial compliance, no exempted group, no deferred observance: all Israel, the whole statute, exactly as commanded.

The compliance report closes both the Passover night (verses 1-13) and the Passover statute (verses 14-49) with the same note: what YHWH commanded was done. The chapter that began with the calendar reform has walked through the Passover institution, the Matzot feast, the Passover night of death, Pharaoh's midnight release, the departure statistics, and the perpetual Passover statute, and closes with the community's perfect first-time obedience. Israel performing the first Passover correctly is the narrative's gift to the reader: the first act of the liberated community is communal worship-compliance.

The double compliance report (verse 28 for the Passover execution, verse 50 for the statute) brackets the chapter's central narrative section (the death of the firstborn, verses 29-36, and the departure, verses 37-42) with two acts of complete obedience. The chapter's form says: Israel obeyed, YHWH acted, Israel obeyed again. The Exodus moves between human obedience and divine action in a rhythm that will define Israel's covenant relationship throughout the wilderness period.