II Samuel 13:2

2 Amnon became so obsessed with his sister Tamar that he made himself ill. She was a virgin, and it seemed impossible for him to do anything to her.

2 E angustiou-se Amnon até enfermar, por Thamar sua irmã; porque era virgem: e parecia em olhos de Amnon difficultoso fazer-lhe cousa alguma.