Leviticus 25:8

8 `And thou hast numbered to thee seven sabbaths of years, seven years seven times, and the days of the seven sabbaths of years have been to thee nine and forty years,

Leviticus 25:8 Meaning and Commentary

Leviticus 25:8

And thou shalt number seven sabbaths of years unto thee
Or weeks of years; and there being seven days in a week, and a day being put for a year, seven weeks of years made forty nine years; the Targums of Onkelos and Jonathan, and Jarchi, interpret it seven "shemittas", or sabbatical years; and a sabbatical year being every seventh year, made the same number;

seven times seven years:
or forty nine years, as follows;

and the space of the seven sabbaths of years shall be forty and nine
years;
just such a space of years there was between each jubilee, which, as afterwards said, was the fiftieth year; so as there were a seventh day sabbath, and a fiftieth day sabbath, the day of Pentecost, so there were a seventh year sabbath, or sabbatical year, and a fiftieth year sabbath.

Leviticus 25:8 In-Context

6 `And the sabbath of the land hath been to you for food, to thee, and to thy man-servant, and to thy handmaid, and to thy hireling, and to thy settler, who are sojourning with thee;
7 and to thy cattle, and to the beast which [is] in thy land, is all thine increase for food.
8 `And thou hast numbered to thee seven sabbaths of years, seven years seven times, and the days of the seven sabbaths of years have been to thee nine and forty years,
9 and thou hast caused a trumpet of shouting to pass over in the seventh month, in the tenth of the month; in the day of the atonements ye do cause a trumpet to pass over through all your land;
10 and ye have hallowed the year, the fiftieth year; and ye have proclaimed liberty in the land to all its inhabitants; a jubilee it is to you; and ye have turned back each unto his possession; yea, each unto his family ye do turn back.
Young's Literal Translation is in the public domain.