Lord, you have pleaded the causes of my soul. You have redeemed my life. LORD, you have seen my wrong. Judge my cause. You have seen all their vengeance and all their plans against me. You have heard their reproach, LORD, and all their plans against me, the lips of those that rose up against me, and their plots against me all day long. You see their sitting down and their rising up. I am their song.
Traditional attribution
The book is anonymous in the text. Jeremiah is the traditional attribution.