'Former Prophets' in the Bible

Do not be like your fathers, to whom the former prophets proclaimed, saying: Thus says the LORD of hosts, 'Return now from your evil ways, and from your evil doings;' but they did not hear, nor listen to me, says the LORD.

Aren't these the words which the LORD proclaimed by the former prophets, when Jerusalem was inhabited and in prosperity, and its cities around her, and the Negev and the lowland were inhabited?'"

Yes, they made their hearts as hard as flint, lest they might hear the law, and the words which the LORD of hosts had sent by his Spirit by the former prophets. Therefore great wrath came from the LORD of hosts.