They do? I'm familiar with the name changes - Abram -> Abraham, Sarai -> Sarah - but not with middle names. Middle of what? Isn't the biblical form something like A, son of B? Not the same as A Bson, just as Jim, son of Jack isn't the same as JimJackson. But I can't recall a character who's multinamed from the start - except those children of a prophet (was it Jeremiah? I'm rusty!) whose names were whole sentences - and I always thought they were plot devices, not real people.