Exodus 12:18

18 Beginning the fourteenth day of the first month, ye shall eat unleavened bread from evening, till the twenty-first day of the month, till evening.

Exodus 12:18 Meaning and Commentary

Exodus 12:18

In the first month
As it was now ordered to be reckoned, the month Abib or Nisan: the fourteenth day of the month at even, ye shall eat unleavened bread;
that is, at the evening following, the fourteenth of Nisan, and which was the beginning of the fifteenth day, the Jews beginning their day from the evening: hence the Targum of Jonathan is,

``on the fourteenth of Nisan ye shall slay the passover, in the evening of the fifteenth ye shall eat unleavened bread:''
unto the twentieth day of the month at even;
which would make just seven days; the above Targum adds,
``on the evening of the twenty second ye shall eat leavened bread,''
which was the evening following the twenty first day. This long abstinence from leaven denotes, that the whole lives of those who are Israelites indeed should be without guile, hypocrisy, and malice, and should be spent in sincerity and truth.

Exodus 12:18 In-Context

16 And the first day shall be called holy, and the seventh day shall be a holy convocation to you: ye shall do no servile work on them, only as many things as will be done by every soul, this only shall be done by you.
17 And ye shall keep this commandment, for on this day will I bring out your force out of the land of Egypt; and ye shall make this day a perpetual ordinance for you throughout your generations.
18 Beginning the fourteenth day of the first month, ye shall eat unleavened bread from evening, till the twenty-first day of the month, till evening.
19 Seven days leaven shall not be found in your houses; whosoever shall eat anything leavened, that soul shall be cut off from the congregation of Israel, both among the occupiers of the land and the original inhabitants.
20 Ye shall eat nothing leavened, but in every habitation of your ye shall eat unleavened bread.

The Brenton translation of the Septuagint is in the public domain.