'Former Prophets' in the Bible

Be not as your fathers, to whom the former prophets have proclaimed to them, saying, So says Jehovah of Hosts: Turn now from your evil ways and your evil doings. But they did not hear nor listen to Me, says Jehovah.

Are not these the Words which Jehovah proclaimed by the former prophets, when Jerusalem was inhabited, and prosperous, and her cities all around her, and the Negev and the Shephelah were inhabited?

And they made their hearts adamant from hearing the Law and the Words which Jehovah of Hosts has sent through His Spirit, by the former prophets. And great wrath came from Jehovah of Hosts.