Albert Barnes' Notes on the Whole Bible - Exodus 12:2
This month - Abib Exodus 13:4. It was called “Nisan” by the later Hebrews, and nearly corresponds to our April. The Israelites are directed to take Abib henceforth as the beginning of the year; the year previously began with the month Tisri, when the harvest was gathered in; see Exodus 23:16. The injunction touching Abib or Nisan referred only to religious rites; in other affairs they retained the old arrangement, even in the beginning of the Sabbatic year; see Leviticus 25:9. read more
The Pulpit Commentary - Exodus 12:10
Ye shall let nothing of it remain till the morning . The whole of the flesh was to be consumed by the guests, and at one sitting, lest there should be any even accidental profanation of the food by man or animal, if part were put away. The English Church, acting on the same principle of careful reverence, declines to allow any reservation of the Eucharistic elements, requiring the whole of the consecrated bread and wine to be consumed by the Priest and communicants in the Church immediately... read more