[God] said to me, ‘Behold, I will make you fruitful and multiply you, and I will make of you a company of peoples and will give this land to your offspring after you for an everlasting possession.’
Genesis 48:4

Israel's ownership of the land of #israel is forever inviolable. It was promised by YHWH with no conditions attached and YHWH does not renege on his promises. Jacob's exile was always meant to be temporary.