What does Jeremiah 26:20 mean?

There was another man who spoke in the Lord’s name—Uriah son of Shemaiah from Kiriath-jearim. He prophesied against this city and this land, saying the same things as Jeremiah. Jeremiah 26:20 - Modern Text Bible

(They mention another prophet, Uriah, who also warned of coming judgment, showing Jeremiah isn’t alone in his message.)