'Everlasting Possession' in the Bible

I will give to you and to your descendants after you the land in which you are a stranger [moving from place to place], all the land of Canaan, as an everlasting possession [of property]; and I will be their God.”

and said to me, ‘Behold, I will make you fruitful and numerous, and I will make you a great company of people, and will give this land to your descendants after you as an everlasting possession.’