All the congregation … shall keep it. Rather "shall sacrifice it." (Compare Exodus 12:6.)
And when a stranger, etc. Here we have the positive ordinance corresponding to the implied permission in Exodus 12:19, and modifying in the most important and striking way the prohibitive enactment of Exodus 12:43. The "stranger," even if he only "sojourned" in the land, was to be put on exactly the same spiritual footing as the Israelite ("One law shall be," etc.) if only he and his would be circumcised, and so enter into covenant,