וַיִּשְׂנָאֶ֣הָ אַמְנ֗וֹן שִׂנְאָה֙ גְּדוֹלָ֣ה מְאֹ֔ד כִּ֣י גְדוֹלָ֗ה הַשִּׂנְאָה֙ אֲשֶׁ֣ר שְׂנֵאָ֔הּ מֵאַהֲבָ֖ה אֲשֶׁ֣ר אֲהֵבָ֑הּ וַֽיֹּאמֶר־לָ֥הּ אַמְנ֖וֹן ק֥וּמִי לֵֽכִי׃
그리하고 암논이 저를 심히 미워하니 이제 미워하는 미움이 이왕 연애하던 연애보다 더한지라 곧 저에게 이르되 일어나 가라
Rashi on II Samuel
Amnon hated her. Our Rabbis say she tied a hair for him [in his genital area] and caused him to have a severed organ.6One who is so injured is prohibited from marrying a Jewish woman as related in Devorim 23:2. This interpretation of our verse is in Sanhedrin 21a.