What does Exodus 12:11 mean?
The Lord's commands about the first Passover (Exodus 12:1–10) are full of symbolic and prophetic elements. Some are also very practical and tied to the hasty exit Israel will make from Egypt (Exodus 12:39). That includes a requirement to eat the meal dressed for a journey. The people are not merely to wear clothes, but to prepare for immediate and quick travel. Roasting a whole lamb (Exodus 12:9) and making bread without rising (Exodus 12:8) also accelerate the process. Securely fastening one's robes with a belt and carrying a staff were natural steps one would take to walk as freely and quickly as possible.Elements connected to the lamb, herbs, and bread would become part of Israel's remembrance of this night (Exodus 12:14).
During the night, God would deliver on His threat (Exodus 4:21–23) to devastate the firstborn of Egypt (Exodus 11:4–6). This would shatter Egyptian resolve, causing them to insist that the Israelites leave immediately (Exodus 12:33).