Sifre to Deuteronomy

Matthew Lanser has posted an interesting summary on comments on Deuteronomy 6:4 from the Sifre (or Sifrei) to Deuteronomy. The Sifre is a rabbinic verse-by-verse commentary which incorporates material from the Mishnah and Tosefta. It is usually dated to A.D. 250-350. I am not sure what to make of Matthew's observations. I also wonder whether this could shed any light on Paul's thought Romans 9-11, a passage that I have been giving some thought to recently. (I Realize that relating rabbinic materials to the New Testament can be tricky.) In any case, you can read the post here.