Flesh of flesh, bone of my bone thou art, 9:914-915
It is interesting to note that this reference is from the bible in Genesis. The book refers to God taking the rib of Adam to give birth to Eve. In this line, Adam is reminding Eve, and the reader that they are from the same source. Milton repeats the words flesh and bone to help reinforce this knowledge. He wants to stress the actual bible reference, and help show Adams main reason for eating the forbidden fruit. She is much more than a companion for him, but actual flesh and bone. Along with their biological relationship, Adam is very much in love with Eve and would have a very difficult time parting with her.
Brooks Winchell