Interesting. I googled "JHVH RPH" and got this. (Well the first thing I got was a link to this thread!"
http://www.thefreelibrary.com/A+brief+moment+for+a+one-person+remnant+(2+Kings+5:2-3)-a094332331
I thought the first sentence was kind of interesting.
The positive use of "remnant" in the First Testament characteristically refers to a self-conscious, self-aware, and often self-serving community that claims the future of Israel for itself (see Hasel). This article considers a "remnant" figure who is not self-conscious or self-aware, and certainly not self-serving.