Let Pharaoh do this, and let him appoint officers over the land, and take up the fifth part of the land of Egypt in the seven plenteous years.
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George Leo Haydock
Fifth part. This was a tax laid upon all the Egyptians, (Calmet) unless Pharao paid for what corn was laid up. (Haydock)
This quantity would be sufficient, as the people would be content with a smaller allowance during the famine; and the environs of the Nile would produce something, though not worth mentioning, chap. xlv. 6. (Menochius)