John Dummelow's Commentary on the Bible - Exodus 12:1-51
The Institution of the Passover. The Tenth Plague, and the Departure of Israel1. In the land of Egypt] These words suggest that what follows was written independently of the foregoing narrative, and an examination of this chapter shows that it contains two separate accounts of the institution of the Passover, one extending from Exodus 12:1-20, the other from Exodus 12:21-28. The latter is the proper continuation of Exodus 11.2. The beginning of months] The exodus is regarded as an... read more
Expository Notes of Dr. Thomas Constable - Exodus 12:43-51
4. Regulations regarding the Passover 12:43-51Before any male could eat the Passover he had to undergo circumcision. Moses stressed this requirement strongly in this section. The rationale behind this rule was that before anyone could observe the memorial of redemption he first had to exercise faith in the promises God had given to Abraham. Furthermore he had to demonstrate that faith by submitting to the rite of circumcision, the sign of the Abrahamic Covenant. This requirement should have... read more