Theodore Bikel sings this in Hebrew, rolling his "r"'s interminably like a pureblood Scotsman. Because there is only one voice, it's easier to hear the sounds of the words in the last verse. Because it is Hebrew and I am not, I still don't hear exactly what he is singing ...

http://savethemusic.com/bin/archives.cgi?q=songs&search=title&id=Aravah,+Aravah