Seven days shall ye eat unleavened bread— In consequence of this command, the Jews searched with the utmost diligence the evening before the passover, that there might not be the least leaven, or leavened bread, remaining in their houses. They were to continue in the use of unleavened bread seven days; because it is computed, that their deliverance was completed on the seventh day after their exit from Egypt, when Pharaoh and his host were drowned in the Red-sea; see ch. Exodus 14:30. Of these days, the first and the seventh were to be held peculiarly sacred; there was to be a holy convocation on them; that is, a calling together, or assembling, for the purposes of Divine worship, Numbers 2:10.
Be cut off from Israel— That is, (as some suppose,) shall no longer be esteemed an Israelite, or be admitted into the privileges of my covenant with this people, (Exodus 12:10.) whether he be a native-born Israelite, or a stranger, who, by the reception of circumcision, has been proselyted to the Jewish religion. See Genesis 17:14.