'Prophet's' in the Bible

But as for the prophet who [on the contrary] prophesies of peace, when that prophet’s word comes to pass, [only] then will it be known that the Lord has truly sent him.”

they even sent and took Jeremiah out of the court of the guardhouse and entrusted him to Gedaliah [a prominent citizen], the son of Ahikam [who had once saved Jeremiah’s life], the son of Shaphan, to take him home [with him to Mizpah]. So Jeremiah [was released and] lived among the people.

Then Amos replied to Amaziah, “I am not a prophet [by profession], nor am I a prophet’s son; I am a herdsman and a grower of sycamore figs.