'Year Of Jubilee' in the Bible

As the hireling, as the sojourner, he shall be with thee; till the year of jubilee he shall serve with thee;

And if a fewness remained to the years till the year of jubilee; and he reckoned to him according to his years, he shall return his redemption.

If from the year of jubilee he shall consecrate his field, according to thy estimation it shall stand.

And the priest reckoned to him the number of thy estimation till the year of jubilee: and he gave thy estimation in that day, holy to Jehovah.