UBF uses the marriage between Rebekah and Isaac to justify the UBF-style marriage by faith. But I think there is a very sharp difference between the marriage in Genesis 24 and UBF-style marriage by faith. I would like to highlight some significant differences between the two. If anyone has more insight into the two marriages, please feel free to add comments.
Go to a Website called http://www.priestlynation.com/ubf.html. This is the most self-serving publicity for UBF I've ever seen off their own Websites. The contrast on the screen will do a number on your eyes, though.