Bible Know Share definition Flag To know someone in the Bible is to have sex with them. So if you have sex with someone, you Bible Know them. Paul:I know your sister Adam:I Bible Know your sister Paul: -__- Adam: Yea thats right Bible Know by TheAdMan89 March 3, 2011 0 0 Get merch Get the Bible Know mug. Buy Now — $32.95 See more merch