Jeremiah was a Biblical prophet whose life was set aside from the time of his birth for the service of God. He lived his life preaching a message of the changing of heart toward the one true God. Facts about his life are in the book of Jeremiah in the Bible.
Jeremiah was the son of Hilkiah, a Levitical priest, and he came from the village of Anathoth, found in the territory of Benjamin. He received his Godly calling while he was still a youth. According to the Bible, God spoke to Jeremiah in the 13th year that Josiah was king of Judah, also when Jehoiakim was king, and other later times up to the 11th year of the reign of King Zedekiah. During the calling of Jeremiah, God gave him an overview of his prophetic mission. He was bound to proclaim the destruction and the building up of nations.
Jeremiah wrote the books of Jeremiah and Lamentations during his prophetic mission, which extended for over 40 years. He pleaded God's case against Judah during the time of the attack of Jerusalem by the Babylonians.
Jeremiah preached about the New Covenant throughout Judah to Jerusalem. He also prophesied about the coming destruction of Jerusalem by invaders from the North. In his preaching, he condemned sin among the people, which caused him persecution and hardships. He received death threats, even from his family. While in Jerusalem, Pashhur, the Priest, sought to have him beaten and put in the stocks.
Nevertheless, he preached hope for the people of God and also the restoration of Jerusalem through the remnant, that God would return.