Second Book of Kings (Author Compiled by Isaias from records of Samuel, David, Nathan, and Gad.)
13:4And he said to him: Why dost thou grow so lean from day to day, O son of the king? why dost thou not tell me the reason of it? And Ammon said to him: I am in love with Thamar the sister of my brother Absalom.
Original from Project Gutenberg - Massive cleanup of OCR problems and editing done locally.