The Book of Jeremiah, also called The Prophecy Of Jeremias, one of the major prophetical writings of the Old Testament. As a prophet, Jeremiah pronounced God's judgment upon the people of his time for their wickedness. He was concerned especially with false and insincere worship and failure to trust Yahweh in national affairs. He denounced social injustices but not so much as some previous prophets, such as Amos and Micah.