'Ancient' 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.

Thus says Yahweh: "Stand at [the] roads and look, and ask for [the] ancient paths, where the way of the good [is], and walk in it, and find rest for your inner selves. But they said, 'We will not walk [in it].'

But my people have forgotten me. They make smoke offerings to the idols, and they caused them to stumble in their ways, [the] ancient ways, to go [into] {bypaths}, not [one that] is built up.

The prophets who were {before} me and {before} you from ancient [times] prophesied against many countries and against great kingdoms of war, and of disaster, and of plague.