Adam Clarke's Commentary on the Bible - Exodus 12:4
If the household be too little - That is, if there be not persons enough in one family to eat a whole lamb, then two families must join together. The rabbins allow that there should be at least ten persons to one paschal lamb, and not more than twenty. Take it, according to the number of the souls - The persons who were to eat of it were to be first ascertained, and then the lamb was to be slain and dressed for that number. read more
Adam Clarke's Commentary on the Bible - Exodus 12:3
In the tenth day of this month - In after times they began their preparation on the thirteenth day or day before the Passover, which was not celebrated till the fourteenth day, see Exodus 12:6 ; : but on the present occasion, as this was their first passover, they probably required more time to get ready in; as a state of very great confusion must have prevailed at this time. Mr. Ainsworth remarks that on this day the Israelites did afterwards go through Jordan into the land of Canaan; ... read more