is not to be understood as relating to the first day after the lapse of the 430 years, as though the writer supposed that it was on the 14th Abib that Jacob entered Egypt 430 years before, but points back to the day of the Exodus, mentioned in Exo 12:14, as compared with Exo 12:11., i.e., the 15th Abib (cf. Exo 12:51 and Exo 13:4). On “the hosts of Jehovah,” see Exo 7:4.
Verse 42
This day therefore was שׁמּרים ליל, “a preservation-night of the Lord, to bring them out of the land of Egypt.” The apax legomenon שׁמּרים does not mean “celebration, from שׁמר to observe, to honour” (Knobel), but “preservation,” from שׁמר to keep, to preserve; and ליהוה is the same as in Exo 12:27. “This same night is (consecrated) to the Lord as a preservation for all children of Israel in their families.” Because Jehovah had preserved the children of Israel that night from the destroyer, it was to be holy to them, i.e., to be kept by them in all future ages to the glory of the Lord, as a preservation.
verses 43-48
Regulations Concerning the Participants in the Passover. - These regulations, which were supplementary to the law of the Passover in Exo 12:3-11, were not communicated before the Exodus; because it was only by the fact that a crowd of foreigners attached themselves to the Israelites, that Israel was brought into a connection with foreigners, which needed to be clearly defined, especially so far as the Passover was concerned, the festival of Israel's birth as the people of God. If the Passover was still to retain this signification, of course no foreigner could participate in it. This is the first regulation. But as it was by virtue of a divine call, and not through natural descent, that Israel had become the people of Jehovah, and as it was destined in that capacity to be a blessing to all nations, the attitude assumed towards foreigners was not to be an altogether repelling one. Hence the further directions in Exo 12:44 : purchased servants, who had been politically incorporated as Israel's property, were to be entirely incorporated by circumcision, so as even to take part in the
