Leviticus 25:21

21 then I have commanded My blessing on you in the sixth year, and it hath made the increase for three years;

Leviticus 25:21 Meaning and Commentary

Leviticus 25:21

Then I will command my blessing upon you in the sixth year,
&c.] Upon their fields, vineyards, and oliveyards, and make them exceeding fruitful, more than in other years; all fruitfulness at any time depends upon the blessing of God, and follows upon it, but is more visible and observable when there is an exceeding great plenty:

and it shall bring forth fruit for three years;
and thus God blessed the sixth year with such a plentiful increase as was sufficient for time to come, until a new crop was gathered in; as he had blessed the sixth day with a double portion of manna, for the supply of the seventh.

Leviticus 25:21 In-Context

19 and the land hath given its fruit, and ye have eaten to satiety, and have dwelt confidently on it.
20 `And when ye say, What do we eat in the seventh year, lo, we do not sow, nor gather our increase?
21 then I have commanded My blessing on you in the sixth year, and it hath made the increase for three years;
22 and ye have sown the eighth year, and have eaten of the old increase; until the ninth year, until the coming in of its increase, ye do eat the old.
23 `And the land is not sold -- to extinction, for the land [is] Mine, for sojourners and settlers [are] ye with Me;
Young's Literal Translation is in the public domain.