30 And Lot went up out of Segor, and abode in the mountain, and his two daughters with him, (for he was afraid to stay in Segor,) and he dwelt in a cave, he and his two daughters with him.
31 And the elder said to the younger Our father is old, and there is no man left on the earth, to come in unto us after the manner of the whole earth. 32 Come, let us make him drunk with wine, and let us lie with him, that we may preserve seed of our father. 33 And they made their father drink wine that night: and the elder went in and lay with her father: but he perceived not neither when his daughter lay down, nor when she rose up. 34 And the next day the elder said to the younger: Behold I lay last night with my father, let us make him drink wine also to night, and thou shalt lie with him, that we may save seed of our father. 35 They made their father drink wine that night also, and the younger daughter went in, and lay with him: and neither then did he perceive when she lay down, nor when she rose up.
36 So the two daughters of Lot were with child by their father. 37 And the elder bore a son, and she called his name Moab: he is the father of the Moabites unto this day. 38 The younger also bore a son, and she called his name Ammon, that is, the son of my people: he is the father of the Ammonites unto this day.
There are many sayings that we have adopted from the beginning of time. There are attitudes that we have also taken from generations past. And then there are circumstances and actions that we have turned around and corrected in the right fashion of life. In todays world we don't ply our fathers with drink and sleep with them to provide an heir. Occasionaly we do read of strange goings on in this regard. Then we have stories of incest between family and children. Where we proclaim it wrong and prosecute the wrongdoers. In the stories of the Bible it is often hard to comprehend how two young women knew how to ply their father with wine to inebriate him to the point of senseless abandon. How they knew what to do in the first place in the natural act between a man and a woman. But we also have to recall where they had fled from and the debauchery that was prevalent in the open spaces of the streets. The acts that were not kept sacred between two loving people. These are often stories that are hard to swallow especially for those who suffer from abuse. This is also where we learn how to forgive as well and realize that long ago they suffered at the hands of others. I don't think God intended that we do things quite in this way, but to use it as a tool of healing. Not to copy in the way of imbibing and using sex to gain what we want out of selfish desires.