I want to quote a Bible verse as well!
The next day, the firstborn said to the younger, “Behold, I lay last night with my father. Let us make him drink wine tonight also. Then you go in and lie with him, that we may preserve offspring from our father.”
Source: http://biblehub.com/genesis/19-34.htmLook look, the bible promotes incest!
actually Incest is pretty normal, is that society made it abnormal. Adam and Eve children had to commit incest in order to be fruitful