Omer (unit)

Article summary

The omer ( ‘ōmer) is an ancient Israelite unit of dry measure used in the era of the Temple in Jerusalem and also known as an isaron. It is used in the Bible as an ancient unit of volume for grains and dry commodities, and the Torah mentions it as being equal to one tenth of an ephah. According to the Jewish Encyclopedia (1906), an ephah was defined as being 72 logs, and the Log was equal to the Sumerian mina, which was itself defined as one sixtieth of a maris; the omer was thus equal to about of a maris. The maris was defined as being the quantity of water equal in weight to a light royal talent, and was thus equal to about , making the omer equal to about , or 0.799 imperial gallons. The Jewish Study Bible (2014), however, places the omer at about . In traditional Jewish standards of measurement, the omer was equivalent to the volume of 43.2 chicken's eggs, or what is also known as one-tenth of an ephah (three seahs). In dry weight, the omer weighed between , being the quantity of flour required to separate therefrom the dough offering. The word omer is sometimes translated as "sheaf" — specifically, an amount of grain large enough to require bundling. The biblical episode of the manna describes God as instructing the Israelites to collect an omer for each person in your tent, implying that each person could eat an omer of manna a day.…

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