Leviticus 25:23

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

"'The land shall not be sold in perpetuity, for the land is mine; for you are strangers and live as foreigners with me.

And the land shall not be sold in perpetuity; for the land is mine: for ye are strangers and sojourners with me.

`And the land is not sold -- to extinction, for the land `is' Mine, for sojourners and settlers `are' ye with Me;

The land must not be sold permanently, because it is Mine, and you are but foreigners and residents with Me.