'Enduring' in the Bible

Look, I [am] about to bring on you a nation from afar, house of Israel," {declares} Yahweh. "It [is] an enduring nation, it [is] {an ancient nation}. A nation whose language you do not know, and you cannot understand what they speak.

Why has this people, Jerusalem, turned away [in] enduring apostasy? They have kept hold of deceit, they have refused to return.