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Thou shalt not approach unto a woman to uncover her nakedness, as long as she is put apart for her uncleanness. 18:19
Trivia: What does the Bible say about a man whose hair has fallen out?
Notice that in this long list of relatives that you may not have sex with, there is one relative that is not mentioned -- your daughter. Nowhere in this list, or anywhere else in the bible, is sex between a man and his daughter (or, more generally, between parent and child) forbidden. 18:6-18, 20