In the middle of Jeremiah, in some of the worst possible circumstances, God through his messenger sends forth the word, "I am the God of your agains. And as surely as I have restored a people before you ever had your feet toddle on this planet, you look to me and I will restore you".
Jeremiah, he's absolutely fascinating, And more is said of him in the Word of God than any other prophet. We know more about the individual Jeremiah of all the Old Testament prophets because he's just verbose about it.