The Faithless and the Faithful

Jeremiah's lot seems even worse than Isaiah's. Jeremiah prophesies of the coming conquest of Israel and Judah. The nations will be taken into captivity as punishment for their sin. The other nations will be judged eventually as well, but the focus of judgment at this point is Israel and Judah. Unsurprisingly, Jeremiah's message isn't well-received. He's thrown into a well, left to die, though eventually pulled free. Lamentations mourns, as its name indicates, cries out to God as the people face God's wrath. But Jeremiah also says, Because of the Lord's mercies we are not consumed for His compassions never fail. They are new every morning. Great is thy faithfulness. The Lord is my portion; therefore I will wait for Him.
One reason hard times come upon us is God's efforts to win us back to Himself. Even when we are faithless, He is faithful.