From the LCMS website:

The prophet Jeremiah was active as God’s prophet to the southern kingdom of Judah ca. 627 to 582 B.C. As a prophet he predicted, witnessed, and lived through the Babylonian siege and eventual destruction of Jerusalem in 587 B.C. In his preaching he often used symbols, such as an almond rod (Jer. 1:11-14), wine jars (13:12-14), and a potter at work (18:1-17). His entire prophetic ministry was a sermon, communicating through word and deed God’s anger toward his rebellious people. He suffered repeated rejection and persecution by his countrymen. As far as can be known, he died in Egypt, having been taken there forcibly. He is remembered and honored for fearlessly calling God’s people to repentance.