Leviticus 25:21 (KJV)

According to the multitude of years thou shalt increase the price thereof, and according to the fewness of years thou shalt diminish the price of it: for according to the number of the years of the fruits doth he sell unto thee.

Ye shall not therefore oppress one another; but thou shalt fear thy God:for I am the LORD your God.

Wherefore ye shall do my statutes, and keep my judgments, and do them; and ye shall dwell in the land in safety.

And the land shall yield her fruit, and ye shall eat your fill, and dwell therein in safety.

And if ye shall say, What shall we eat the seventh year? behold, we shall not sow, nor gather in our increase:

And ye shall sow the eighth year, and eat yet of old fruit until the ninth year; until her fruits come in ye shall eat of the old store.

The land shall not be sold for ever: for the land is mine, for ye are strangers and sojourners with me.

And in all the land of your possession ye shall grant a redemption for the land.

If thy brother be waxen poor, and hath sold away some of his possession, and if any of his kin come to redeem it, then shall he redeem that which his brother sold.

And if the man have none to redeem it, and himself be able to redeem it;