Exodus 12:15-20

Verse 15

Seven days shall ye eat unleavened bread - This has been considered as a distinct ordinance, and not essentially connected with the passover. The passover was to be observed on the fourteenth day of the first month; the feast of unleavened bread began on the fifteenth and lasted seven days, the first and last of which were holy convocations.

That soul shall be cut off - There are thirty-six places in which this excision or cutting off is threatened against the Jews for neglect of some particular duty; and what is implied in the thing itself is not well known. Some think it means a violent death, some a premature death, and some an eternal death. It is very likely that it means no more than a separation from the rights and privileges of an Israelite; so that after this excision the person was considered as a mere stranger, who had neither lot nor part in Israel, nor any right to the blessings of the covenant. This is probably what St. Paul means, Rom 9:3. But we naturally suppose this punishment was not inflicted but on those who had showed a marked and obstinate contempt for the Divine authority. This punishment appears to have been nearly the same with excommunication among the Christians; and from this general notion of the cutting off, the Christian excommunication seems to have been borrowed.
Verse 16

In the first day and in the seventh day there shall be a holy convocation - This is the first place where we meet with the account of an assembly collected for the mere purpose of religious worship. Such assemblies are called holy convocations, which is a very appropriate appellation for a religious assembly; they were called together by the express command of God, and were to be employed in a work of holiness. מקרא mikra, convocation, is a word of similar import with the Greek εκκλησια, which we commonly translate Church, and which properly signifies an assembly convened by public call.
Verse 17

Self-same day - בעצם beetsem, in the body of this day, or in the strength of this day; probably they began their march about day-break, called here the body or strength of the day, and in Deu 16:1, by night - sometime before the sun rose.
Verse 19

No leaven found in your houses - To meet the letter of this precept in the fullest manner possible, the Jews, on the eve of this festival, institute the most rigorous search through every part of their houses, not only removing all leavened bread, but sweeping every part clean, that no crumb of bread shall be left that had any leaven in it. And so strict were they in the observance of the letter of this law, that if even a mouse was seen to run across the floor with a crumb of bread in its mouth, they considered the whole house as polluted, and began their purification afresh. We have already seen that leaven was an emblem of sin, because it proceeded from corruption; and the putting away of this implied the turning to God with simplicity and uprightness of heart. See on Exo 12:8 (note), and Exo 12:27 (note).
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