Deuteronomy 16:4

4 No leaven shall be seen in all thy coasts for seven days, neither shall any of the flesh of that which was sacrificed the first day in the evening remain until morning.

Deuteronomy 16:4 Meaning and Commentary

Deuteronomy 16:4

And there shall be no leavened bread seen with thee in all thy
coasts seven days
For before the passover they were to search diligently every room in the house, and every hole and crevice, that none might remain any where; see ( Exodus 12:15 Exodus 12:19 ) ( 13:7 ) ,

neither shall there be anything of the flesh, which thou sacrificedst
the first day at even, remain all night until the morning;
which may be understood both of the flesh of the passover lamb, as Aben Ezra, according to ( Exodus 12:10 ) and of the flesh of flocks and herds, or of the Chagigah; according to Jarchi this Scripture speaks of the Chagigah of the fourteenth, which was not to remain on the first day of the feast (the fifteenth) until the morning of the second day (the sixteenth).

Deuteronomy 16:4 In-Context

2 And thou shalt sacrifice the phase to the Lord thy God, of sheep, and of oxen, in the place which the Lord thy God shall choose, that his name may dwell there.
3 Thou shalt not eat with it leavened bread: seven days shalt thou eat without leaven, the bread of affliction, because thou camest out of Egypt in fear: that thou mayst remember the day of thy coming out of Egypt, all the days of thy life.
4 No leaven shall be seen in all thy coasts for seven days, neither shall any of the flesh of that which was sacrificed the first day in the evening remain until morning.
5 Thou mayst not immolate the phase in any one of thy cities, which the Lord thy God will give thee:
6 But in the place which the Lord thy God shall choose, that his name may dwell there: thou shalt immolate the phase in the evening, at the going down of the sun, at which time thou camest out of Egypt.
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