In Old Testament sources there is a clear line of delineation between those who are called "wives" and those who are called "concubines." There are two clearly separate terms used to distinguish between the two ("eset" for wife and "piylegesh" for concubine), though the specifics of the distinction seemed to vary over the centuries.
Tongue-in-cheek references to the in-novel ending of Dune notwithstanding, is there an agreed-upon (and Biblically-and-Toraically-sound) definition of what the distinction actually was? And how applicable, if at all, is that distinction in modern society?
For the sake of full disclosure, I've read seven books attempting to answer both of these questions and found seven different answers.
Tongue-in-cheek references to the in-novel ending of Dune notwithstanding, is there an agreed-upon (and Biblically-and-Toraically-sound) definition of what the distinction actually was? And how applicable, if at all, is that distinction in modern society?
For the sake of full disclosure, I've read seven books attempting to answer both of these questions and found seven different answers.